Are you kidding me, I have a 6102 and plugged each elevator servo in a different channel and have no problems what so ever. I just put it in one of the four mixes, elevator master and somthing like channel six which was like aux1 or wm I really cann't remember which one. It was easy, just do negatives for the slave channel and positives for the master, that reverses the other servo, or the other way around, whicheverway your servo's are pointing, it is wasy. Who cares if the trim only works for the master. get them centered and then land once or twice to get it flying level and you are alright for the resst of eternity!!!!!

Why would you do it any other way?