Building Light arrows for Light Poundage 3D archery

So, I have combed the forum, and the closest relative thread I found was from 2018. So, as it's been a minute, I am starting a new one.

For my father, whom of which, I am dragging to TAC this year, I am trying to build him a good set of arrows that will allow him to reach the ~100yard shots. Bow is a Mathews Tactic 50# and 28" DL of course, that is asking much of a 50# bow, yet trying to set him up for success. Probably will run a MBG Mountain Lite 3 pin. The arrow I am considering is the Easton Avance (6.5gpi @ 28.25" with 80gr glue in point). according to Archers Advantage this would be an optimum spined arrow, and hopefully a good arrow for him. Trying to keep it simple and relatively inexpensive...

We still are going to check his poundage again, and maybe do a test chrono before the Final arrow build. This setup I think according to Archers Advantage may yield a 322 grain arrow.

Thoughts - Insights