My draw is longer...28"...but I have gone down in poundage this year and now shoot bows from 40#-45#. The bow I shoot the most right now is 41#. Because I have taken notes over years regarding arrow penetration/performance on my kills, I have found what works for me. So, here is my recipe:
I used both .500 and .600 spined arrows and build/tune a set for each bow to see what that bow seems to "like". My 41# BW recurve likes a GT 35-55 cut to 29", 50 grain brass insert, 225 grain point. Hits like a hammer with good cast out to 25 yards.
My 45# Silvertip recurve likes a 29" Vapor 2000 (these shafts no longer available, I am told)with standard insert and 300 grain point.
My suggestions are to go with high FOC, and an arrow with good weight...at least 10 GPP of bow weight and more if it flies well out of your set up.
Both of your bows will blow right through a deer with the right arrow/BH combo. Plus, you body will love you for going to a low poundage set-up!
Claudia