I found the wheel pants to be very flexible as mounted and can move enough to come into contact with the wheels. I glued small balsa spacers to the inside of the pants positioned to come into close proximity to the axle and the wire just as it bends to enter the wheel.

These prevent the pant from contacting the wheel.

Also recommend you strictly adhere to the balance and throw guidelines in the assembly manual and that you study some Youtube videos to learn the character of the model before you test fly.