And to add to what Larry said, if you're using the new airfoil, you'll want to rig the ailerons so that they are both about 3/16" low at the trailing edge when centered. This is due to the lift on the aft edge of the airfoil taking the slack out of the aileron system. At least that's the way mine are. I'd think the RAF48 would have exhibit the same behavior, but somewhat less.
Mark Langford ML at N56ML.com website at http://www.N56ML.com --------------------------------------------------------

