burnie_1_2000
hi there regardless of arrow length, the shorter the brace height the less forgiving the bow is, meaning at 6 inches your form and the machanics of the bow must be at thier best to shoot consistantly, the higher brace allows some small errors in form and machanics and still gets you on target, have fun shoot safe.

dumdum
Burnie has given you the correct answer. The 7 inch brace height would be much more forgiving. You would be able to shoot it more accurately consistently. The 6 inch brace height would give you more speed, but in bow shooting accuracy is all that matters.