Hanger 9 P-51D Highspeed problem!
For Whatever it's worth:
Crashed mine today when the left stab broke of in flight. Did a 50 degree bank turn with 3/4 throttle (Have a OS 91FX). Broke right where the stab meets the fuselage. I have owned the 40 size P-51 from WM and never had any high speed or high load problems. I will call Horizon tomorrow and see what they say.