RE: Sig Kadet Senior Aileron modification
I agree with Dsegal, if adding ailerons take out at least half the dihedral ( I prefer none with ailerons added) or the ailerons will be very unresponsive. Even then, use lots of differental on the ailerons, much more "up" than "down" throw. You will find the Kadet to be much easier to fly than the cub, especially on takeoffs and landings.