I would think that for $20 to $40 for a reversing y-harness vs. $79 for the 6-channel AR 6200 receiver(most LHS will sell for less) you would use a 6-channel receiver. The advantages of sub trim on each horizontal stab and the fact that elev trim works on both elev channels(elev and aux 1 when using mix 5 and 6) would make life so much easier.