From practical experience, it seems that many people on this board have found GT's chart to be a little off by recommending softer arrows than they should be. I think there is an updated chart available too that is corrected a bit better.
I don't know your setup, but 68# and a 28" arrow sounds like a 75/95 to me.
I think that 55/75 are spined at .400, and 75/95 are around .340-ish.
Thanks,
Rick
I don't know your setup, but 68# and a 28" arrow sounds like a 75/95 to me.
I think that 55/75 are spined at .400, and 75/95 are around .340-ish.
Thanks,
Rick