I have been using some very thin foam insulation tape from Japan on all of the contact surfaces with good results - the wing saddle, the stab and the bellypan - to cut down on the rubbing noises. Since it is extremely thin and light weight, I also wrap it around the aileron & elevator extension leads. And, because this plane will be using two servos on the elevator, the long extensions will most likely be rattling inside the fuse if it is not properly insulated also. However, you must use a very sharp knife each time. For some reason, these tape snags easily.