Im still needing a stock for my build I settled on the magpul but like you said if I went with it I would have to skimp some where else. Im thinking im gonna have to take a little extra time so I can have everything i want.
I have always held center force near and dear to my heart. But for 50hp like said it might be over kill. If you change the rubberband in that motor maybe you could pull 55-60 hp