Was at the hitting bay when choosing between a TSR2 vs TSR1 7 wood both with standard headweights and tried the same shaft (65g Tensei R at 41.25", installed on the TSR2 when I originally bought it: I returned it awhile ago because the TS2 5 wood was easier to hit), The TSR2 came in at D2.5 and the TSR1 at D1. The TSR1 won out so I installed a Diamana 72 x5ct S that I had set up at 41" when I got it home. Feels exactly like my 910F 21 that I've had for ages (with 71g Diamana at 41"). I can't swing a 40 gram shaft because it is too whippy so a 70g shaft works perfect at -1/2". I play my fairways and hybrids at D3 or A3 Surefit settings. Attached is a picture of my TSR1 arsenal (20.75-24.5-28) with the fairways using Diamana 72 x5ct S and the hybrid using Diamana S70+ S. I have a Diamana 60 lite at standard length for the hybrid plus my 910F 21 (with standard length Bassara R and A available) and Bassara R and A for my driver when the inevitable time comes a few years down the road. My ball striking has improved considerably since 2015 so I've gone from Bassara A flex to Diamana 62 S on the driver, Diamana 72 S on the fairways, and S70+ S on the hybrids.