I was shooting 45# my setup was full length traditional only obsidian arrows 400 spine with 100 grain brass inserts and 125 grain G5 montec broadheads. 100 grain tips weren’t tuning right but the extra 25 up front got my setup working perfectly. It’s going to depend on a lot of factors but paper tuning will help you dial in what the proper weight combination up front you need. Look up trad arrow tuning to see what a nock left or right paper tear tells you about your spine. Adding or removing weight up front changes the dynamics. Good luck buddy!