I get great arrow flight with 29.5" 2117's with 125 grain points from my 50#-55# bows & 28.5" draw. Let me know when you are ready to sell your 2117's, Covey!
I can add that I also shoot 29.5" 2213's with great results. The spine is very close to that of 2018's. They are fairly light; XX78's with 3-4" parabolic feathers and 125 grain point weigh around 475 grains. With a cap wrap and 5" feathers they weigh around 490. At 55# this is still 8.9GPP though, so I don't consider it an issue for deer sized critters...