I also had a problem using the same chanels for aileron. I created the problem by mixing apples and oranges. Hitec receiver and brand X servos. The servos I was using would not work properly or at all when using ch 1& 6. When i recognized the problem, I junked brand X and went to all apples. I have used other brand servos in that configuration with out problems, but that one type gave me fits. My eliipse has been rock solid since 2004. Hey Hitec I am waiting on the 2.4 gig update. Hurry a little.
My problem and yours may be totally different. I used Hitec service once on a couple of receivers. Their service and response was excellent.