I have no idea why. He lost to Archer in the finals lthe year before. Then he beat Varner for the title the year after.https://youtu.be/11AuXGlRIqo?si=FhFRLh3OoZ1ruoAQ
Your specs aren't normal.
I wouldn't make those if you paid $1000 each.
12.4mm and you want 17" or 14" " pro "? Meaning almost straight for those lengths.
Any maker can tell.wood stiffness by simple bemding test.
But, those specs will result in warped shafts.
Perfecting the PSR and stroke is the "magic pill ". Tons of structured practice is the other magic pill..Aiming system is paying attention to colliding balls.