I shoot one set for 3 bows from 50-55# at my draw length,that weigh 709 grs.I have another bow,app 53# at my draw and those arrows are 715 grs..I guess they would all be about 13-13.5 GPP.
When I did the first set,I didn't intend to go that heavy either.To go a spine group lower,the arrows would have been lighter than I wanted and less FOC than I hoped for so that is how it came out.The performance has been so impressive that I'll be probably staying with them.I like to keep all the bows shooting app the same gpp when possible.