sdandrea1 . It defies all fitting logic.
No it doesn't...."HEFT". Shorter playing length easier to hit.
Np one here has stated their transition time and release early-mid -late you gotta love golfers that try to self fit. FLEX means nothing I'll state mine to get it kicked off 86 mph, 1.4 second transition time with 45" driver and early-mid. Those last 2 factors are more important than driver SS.
BTW, here's the S2S Black 65/85 shaft profiles and shaft weight along with how the club builder "fit" for "heft" to compare that's what you guys gotta know not flex or other manufacturers marketing BS. Just sayin'. ☺ https://wishongolf.com/designs/shafts/s2s-black-65-85-wood-shafts/
Should add only Wishon (frequency profiles) and Accra (EI profiles) publish shaft profiles on their websites and that's what you gotta know to get into reality. The rest of the stuff is a just a wild ass guess. They want you to know nothing. The first is to know those swing stats. SS, transition time and release then go forward. Tools like a cheap Swing Speed Radar will yeild the first two and video will yield the last.