I've now settled on Babolat Tonic + 15L on the mains at 54 lbs and Weiss Cannon Black5Edge on the crosses at 52 in my YT Rad Pro racquets. I cannot believe the feel, spin and longevity I've been getting with this setup. I really do believe this set up offers the most spin of anything else I've tried and it's much easier on my gimpy wrist. Besides all the previously mentioned attributes it's like the strings are locked in place. Even weeks later and they barely move. I break string fairly quickly but these have held up amazing.
Even when my wrist gets better this is gonna be my setup for a loooooong time.
(4) Volkl PB 10 Mids
Babolat Tonic+ 16/Babolat RPM Team 17 @ 51 lbs