I used 4 servo for som redundancy and also I read that alot of people were haveing dificulty geting the aileron Diff right with the 2 aileron system I used Ernst charge recepticals to house the aileron connectine leads in the fuse by the main struts so you can tyrap the aileron extensions from the top wing to the main strut and plug them in to the fuse and you wil never see them. If you look close at the Pic at the front strut on the fuse you will see what I did .Works great. I saw this in an artical somewhere maybe even on this thread but cant remember now.

Pat