I just bought a new 9C and started reading the manual and playing with the Tx. Just a couple general Q's. How do you program the trainer switch to function as a snap roll switch? I mean, I can read the manual on how to do it, but am confused as to how much control surface throw I should program for each surface (aileron, rudder, elevator). Do you start with 100% for each? And what if this doesn't result in the desired effect while at the field? Anotherwords, if you can do a perfect snap roll using just the sticks, how do you go back and program the Tx to do the same thing, not knowing exactly how much (in %) you moved the sticks at the field? Isn't it a lot of trial and error on the programming? Do you just keep adjusting the % control throws until you get a good roll? This question applies to mixing as well, but for now, I'm just curious in the snap roll. Thanks .

Considering how many variables there are in flight, is it even possible to do that?

Just leave the 100% for starters.

Try and set DIR SW1 to switch G. You can then have 3 diffetet direction settings