Nice looking planes, I like the "bling" effect.

You mentioned the Hitec 81 was smaller than the Hitec 85, are you sure? I thought it was the same case, just that the 85 has ball bearings. Personally I would be concerned with 81's on the ailerons, especially if you think this thing will break 170 mph.

Did you give any thought to using a single aileron servo in the center with torque rods too the ailerons?

Looks great so far.