JR DX9 to Spek DX7 Trainer problem?

[TrexMADuk]

Trainer Set up problem

OK the JR DX9 controls the heli as a master, all works great... Add DX7 and all works ok apart from the rear two pitch and elevator servos which are out of sync, so as you add pitch one moves more than the other .... also when you switch out function to the trainer, say you allow him to onlyhave the aileron control... works ok.... but if he moves the throttle stick the swash will move and out of sync...any one else tried??

[TrexMADuk]

Also, if I switch all controls over to the trainer it works ok, its just as soon as you assign any control for only the trainer it occurs, poss will just have to tell them to take there thumb off the throttle stick alltogether so they dont get any strange interaction by moving the throttle..not right though, as I can do this OK using my JR8310 on 35mhz as master and the DX7 as trainer!!

[HiroboFreak]

I've done it a few times with no problems.
I select a default model memory for the DX7 & set the trainer function on the DX7 to SLAVE - P LINK, & set DSX9 to MASTER.