Thanks for the info. My SSS 90 has a Saito 90, I had to mill alum blocks (1/4"x5/16") bolted inside the mounting rails which were set at thier widest in order to use the supplied mount). I realized that the spats would be useless so didn't put them on. I could tell that the pull pull for the elevator would be a challenge so used an arrow shaft from the servo to the bellcrank assembly in the tail (nice unit!). Jim G.