Well Bob it is nothing exotic or unique. A local fellow who flys moderate and high performance EDF stuff bought a Sky Master F-15 with the idea of getting his turbine waiver. The 12 x TX is mine, the airplane came with a 9ch rx. The airplane came with 5 match boxes on: ail/elev/rudder nws /flaps and speed brakes. If it was my airplane I wouldnt have any match boxes, I would either use a "y" or more likely assign each servo to a diff channel. If I do either of those we wont be able to do buddy box trainer system. So, I'm left with trying to make them all work. I may end up doing away with the one on flaps and the one on speed brakes. I tried to "y' the ailerons, horizontal stabs and rudder but then I both ailerons going the same direction or both stabs going opposite directions and ditto for the rudders and nws. Thats my story and I'm sticking to it untill I think up a better one !!