Westerman, if you're going to fly fast like that again the sharper leading edge is what you want. But now you're working the other end of the performance envelope from the near stall and post stall slow speed 3D style. Instead you're going to reduce the drag by using the sharper LE so you can go faster for the same power or go AS fast with less power and run for longer on a tank.

Keep in mind that part of the big high speed zoomy style of flying is to not drag down the speed of the model by pulling high G tight turns and pitch motions where you run the wing up to the high angles of attack where you risk the high speed stall. Instead you keep it moving and use the lower drag middle lift coefficients except where you want to do a snap. Then you park the sticks in the corners and watch the fun. And the sharper airfoil the works in the other zone to give you the sharp and abrupt stall you want compared to the softer nosed option.