51# @28" Bob Lee Ultimate. Drawing 28 3/4". Want 29.5" Douglas Fir arrows with 125-135gr points. What spine?
My 52# @ 27" Fedora likes Surewood Steve's Doug fir spined 55/60#. Arrows are cut 28.5"..."Lefty" also shoots 60/65# Fir arrows well. I shoot 125/135/160 grain broadheads on all my arrows with great arrow flight.
70-75
How about a call to the guys at RMS? I have found Tommy to be a great guy.
I'd go with 65-70# spine.