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    • Jeg har spillet med Vice og kan klart anbefale bolden, men nøj, hvor er det surt, at sådan en prop skal ødelægge det alle går og drømmer om.
    • WOW...denne havde jeg IKKE det komme, myter og fejlinformation leveret direkte fra en skaft producent er IKKE daglig kost. @  @  Et klassisk spørgsmål er ofte om vi kan tip trimme et "S" flex skaft til å blive "X" flex, og svaret er definitivt NEJ, det kan kun ske på skafter vi omtaler som "muliti-flex", og de er da mærket som t.eks R/S eller R/X og de kendetegnes også ved at selve tip sektionen er meget lang mod det normale. GolfWRX har lige nu en uppdate af forumet (platformen), så man kan ikke skrive der lige nu, men jeg har forberedt et input i en tråd jeg allerede deltager, og der chokket er betydelig ved at Fujikura (som har en USA afdeling) er ude med definitiv desinformation ikke kun i forumet, men på sine hjemmesider. Påstanden er at man ved å tip trimme et "S" flex skaft med 1.0" tomme, kan hæve flex styrken en hel flex klasse eller 10 CPM. Jeg tænkte først det må være et "arbejds-uheld", men efter å ha tjekket Fujikuras hjemmeside gentages den samme påstanden, dog ikke som CPM som i forumet, men det er typisk sådan man måler. link til tråden og påstanden https://forums.golfwrx.com/discussion/comment/19615119/#Comment_19615119 "1" tipping is one full flex in our products, so 10 CPM stiffer. Hope this helps." Link til Fujikuras hjemmeside https://fujikuragolf.com/tip-trimming "Tip trimming 1 “is equivalent to one flex, so for example, if you wanted to stiffen your S flex to an X flex then you would tiptrim 1” Når jeg nå har til-hensigt å gå selveste skaft producenten Fujikura i rette, og med fakta information om hvordan skafter måles og vurderes, gør man sig sine tanker om hvorfor alle myterne om Golfudstyr eksisterer. Det fortoner sig som om folk fra PR afdelingen med højst overfladisk indsigt i tekniske tema begiver sig ud på tema de burde holde sig langt borte fra, men eftersom tråden indtil videre er lukket for reply, og først åbner om en dag eller 2 når forum platformen er opdateret, har jeg IKKE postet det her svar, og deraf heller ikke fået nogen forklaring på det umulige fra Fujikura, så med alle mulige forbehold, findes der en forklaring på påstanden, men jeg vælger å tro det skyldes et "arbejds-uheld" skabt af nogen som ikke har tilstrækkelig kundskab om hvordan skaft flex vurderes. Vi er ude i et særdeles heavy tema, men her handler det altså IKKE om hvor stiv S eller X er, der findes jo ingen standard for det, men vi regner altså at en flex klasse er 10 CPM så en given skaft model som S vs X BØR være ca 10 CPM fra hinanden målt som but CPM. Det er igen de specielt interesserede jeg skriver for, og for å sikre at de får med sig denne tagger jeg de jeg husker i farten. @Rosenberg @Honum @osholm, @Nik, @ANE Jeg skriver selvsagt på Engelsk på WRX, og har deraf IKKE oversat mit input til Dansk, men eftersom dette jo KUN er for de specielt interesserede, burde det gå fint.   To understand butt CPM judgement, we have 3 scenarios to be made Scenario 1 - Tip trimming vs butt trimming 1.0 inch Scenario 2 - The above compared to a flex charts like RIFLE FCM or Kaufman L.A.R.S.X Scenario 3 - Tip trim 1.0” on a S flex vs butt trim 1.0” on a X flex of the same model SCENARIO 1 A player has a 46.00” uncut shaft and lets for the sake of example say it measure 250 CPM with a 205 grams weight and a 5.0” clamp. The player intends to cut the shaft 1.0” inch shorter and he got 2 options. The first option is 1.0” from the butt, the second option is 1.0” from the tip. The question is. How large will the difference to flex be if we tip trim vs butt trim 1.0 inch? The answer is, probably 4 CPM or 1 CPM stronger for each 2/8” of tip trim instead of butt trim. (a actual example comes below) SCENARIO 2 If we look at different flex charts out there we will see that there is a progression to CPM vs play length, that progression will vary depending on what chart we look at, or more correct, what shaft MODEL we look at, since each shaft model has a flex progression rate of its own. If we for the sake of example use RIFLEs FCM system who is the most known and the origin of Butt CPM measurement, and where 10 CPM equals to 1 full flex,(FCM 5.0 to FCM 6.0) that chart has a progression rate of 8.5 CPM pr inch, who means if we have a shaft that’s 46.00 who measure 250 CPM, and now cut it 1 inch shorter, it has to measure 258.5 CPM to be the same flex as it was. But ONLY if we measure with the same SW value. For IRONS we can use 14 grams head weight added per inch shorter as average, for woods we are at about 10 grams per inch.(1 SWP as grams vary with play length) SWP to CPM follows each other in a 1:1 relationship If a shaft actually goes 1 full flex stiffer by 1.0” tip trim (10 CPM), measured using the same tip weight, our shaft that started as 250 CPM, must return this value: 250 Start CPM + 8.5 CPM from going 1 inch shorter just to be the same flex.(the FCM chart) + 6.0 CPM from losing 1 inch / 6 SWP since we use the same head weight/tip weight + 10  CPM to gain 1 full flex so change FCM 5.0 to FCM 6.0 or 1 full flex. Summary  274.5 CPM or a gain of 24.5 CPM on our CPM reader. That means our return value has to go up with minimum 8.5 (slope pr inch) + 6 (lost SWP) or 14.5 CPM just to remain the same flex as it was, so unless we see a return value of 264.5 or higher, we actually went softer, not stronger. Adam C, another profile here has a video on you tube where his measured numbers from uncut to 1 inch shorter by tip trim is 285 vs 299 = 14 CPM….but we need 14.5 just to be on slope, but if we used Kaufmans charts with a progression of 7.3 CPM pr inch, we get (299-7.3-6) =285.7 so net flex gain was only 0.7 CPM from 1.0 tip trim. FCM 5.0 became FCM 5.1. The same shaft Butt cut 1 inch was 285 to 293, so we go SOFTER by butt trim, and in his case the NET difference between 1.0” inch butt trim and 1.0” inch tip trim was 6 CPM. (This will vary, even on the same shaft model, but the expected average difference is 4 CPM or 1 CPM for each 2/8” tip trim vs butt trim. If the X profile was identical, and equally stiffer “all over” The X flex model would have started as 295 (vs 285), and with 1.0” inch BUTT trim changed to 203, a gain of 8, while the needed gain to stay in flex was 14.5, so it became 6.5 CPM softer from 1.0” butt trim (FCM 6.0 became FCM 5.35) SCENARIO 3 The THIRD scenario Tip trim a S flex 1.0” vs butt trim a X flex 1.0”. if we stick to Adam C and his example (and a simulated case of a 10 CPM stronger “X” flex), we saw that the S will move from 285 to 299 by trip trim, and the “X” who starts from 295 will go to 303 with 1 inch butt trim, so not even in that scenario will the butt CPM isolated become the same, the X will still be 4 CPM stronger So, if the question is, “can we tip trim a S flex to become like its stronger X flex model”, the answer is absolutely NOT, that’s only possible on “multi-flex models” where the tip section is long enough to make the needed tip trim who would be in the area of 2.0 to 2.5 inch depending on EI profile. We might get butt CPM close depending on what EI profile that shafts has (Scenario 3), but the X flex model will still be stronger in the mid-section and tip-section, so navigating by butt CPM alone is not a good idea, since it’s all about FEEL and how the altered profile works. Some models even become higher launching when we tip trim them, the opposite of the expected, so my advice is simple, if S flex feels to loose, go X flex, and if that feels to strong, let a qualified club maker judge the EI profile before as decision of tip trimming the S flex models is done, we might need to look at another shaft model to get what we want. Summary Scenario 1 – 1.0” inch tip trim vs 1.0” butt trim, expect the difference to be 4-6 CPM Scenario 2 – 1.0” inch tip trim WANT make the shaft much stronger compared to the needed slope on a flex chart when going shorter, we can hardly keep the needed progression needed. (See the link to Russ Ryden and full EI profile). Scenario 3 – 1.0” tip trim on “S” vs 1.0” butt trim on X get butt CPM closer and from 10 down to about 4 CPM on butt in our example, so X will still be stronger not only at butt, but overall. REFERENCES For more info about Butt CPM as flex compare, FCM charts, also for NON FCM shafts, follow this link: https://forums.golfwrx.com/discussion/1816864/cpm-and-flex-matching-what-chart-to-use-fcm-what-is-flex-slope Russ Ryden example of a S flex, S flex tipped 1.0  and untipped X flex https://www.golfshaftreviews.info/technical-stuff/tipping-golf-shaft/ ADAM C example of butt vs tip trim on the same shaft used in the examples above. https://www.youtube.com/watch?v=Juw6aCNlgDE&t=653s End note with attention to Fujikura. Your text on your web page is misleading, I have no idea how those 10 CPM is measured, but it looks like someone without knowledge of shafts measurement and judgement have taken a shaft, measured it, then cut 1.0” inch from the tip and saw a return value that was 10 CPM higher than start value. If that’s how it was done, the judgement is completely wrong, the shaft did become 10 CPM stronger itself, (Actual gain was only 4 CPM stronger, we have to equalize SW/head weight), and like all 3 scenarios explained show, we CANT actually gain enough flex strength to make S become X with only 1.0” tip tyrim, and the return value using the same tip weight would actually need to move butt CPM 24.5 before the claim of “10 CPM stronger” becomes correct. Since ALL shaft profile respond a bit different depending on EI profiles, we only have a general guideline of what we can expect, and all 3 scenarios is now explained the way we should judge them. If Fujikura actually means that S flex can be altered to the same shaft model as X flex by a tip trim of 1.0” inch, I look forward to the explanation of the scenario we talk about (1-2 OR 3), and how the measurements is done who shows that, both as EI profiles and butt CPM measurements of at least 2 of your shaft models. Until you can provide that, I expect the text to be based on a single shaft, and misunderstandings about how shaft flex compares shall be done, and I know that’s a bald statement, but ive shown off the 3 scenarios we can use, so its up to you to explain yours. It’s of highly importance that you do so, since the words from a official webside of a shaft manufacturer “counts” and might be considered as correct and valid for all shafts, but the reader dont understand the context (Scenario 1,2 or 3) and might think this is simple and “strait forward” like the text gives the impression of. Så må vi bare vente å se til WRX åbner forumet igen, og ikke mindst hvad Fujikura har for en forklaring til sin påstand som i alle de scenarios jeg kender til er en umulighed. Jeg havde ikke set denne komme, slettes ikke, så jeg har nok aldrig været mere spændt på hvad slags forklaring de har til en påstand som denne.
    • Uanset bold mærke..... 🤬
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