If it helps, I will share my specs.
Blacktail recurve 53# @28". Using a 63-64# Sitka Spruce 28.75" long.
TallTines recurve 55# @28". Using a 70/75# Wilderness Custom Surewood, 29" long.
I am currently using a 160 grain two blade broad head.
Both seem to fly good. I have shot up to 75/80 with 190 heads, but like the flight of the 70/75 with 160 a little better.
Snag at Wilderness Custom arrows is a really good guy and has been very helpful to me in the past. You might want to give him a call and run your specs past him and see what he thinks.
Good luck,
Gary