RE: Carbons and bare shaft tuning
I tried shooting some wally world special 29" 45/60 terminators from a 49@ 27" black widow psav.I found that even with 175 grains they were too stiff.I figured I would need at least a 50 grain weighted insert and a 175-200 grain head to get em right.You could get some brass washers and just add them behind the fp see what happens.
CB