I need to know how to use two servos for a split elevator setup. I am using a Prisim 7X radio. I wasnt able to get equal movement with a reverser. All the adjust ment does is move the centering point. My arms & horns are right. I went to puting one servo in #2=elev & the other in #6-Flap since this was the only elevator mix. I can get them moving Ok now, except that only one side responds to trim. Also, the mix only occurs when the flap switch is up. Any ideas.