I have just tuned a Martin Hunter 50#
I shoot split fingers
31'' 2315 arrow, my draw length being 29.5'', 125 gr point
brace height 7.75''
nocking point 5/8'' above level
They are flying like darts, my draw weight would be about 53-54 pound.
As long as you now the required arrow length, go to the easton arrow selector chart and calculate. This chart has never let me down yet. Have a look how I chose mine, recurve, 31'' 53-54 #.
Bryan