sxybst90," if you remember which one was the stiffest? cuz i wan't something stiff and do i have to cut some shell to make it more flexible with the BTS?"
Honestly, I do not remember, and it's all subjective to personal preference. At the top of page, click on Search, type in 'HSP', 'BTS', 'HEAD BTS' or similar, there was a ton of good information posted.
It will be more than worth your while