Thanks a bunch, Jake. I'll get some skewers or something and spend some time making adjustments.
Gettin into the IMAC stuff huh????
You asked about ailerons and Jake gave you some tips on elevators....
It was good advice for the elevators and what I use to track 'em is a couple of carbon fiber rods I got from the LHS. Light weight, straight and don't flex. Also, it's time to get rid of the ruler and go for some degree gauges,protractors or deflection meters. I got mine from Central Hobbies up in Montana and the've got lots of neat stuff if you've never been over there, they are really big into the pattern stuff. I think AeroWorks sells something very similar and I've seen 'em other places as well. Hangar 9 has got some nifty digital versions, but in my experience they are just to heavy.
Now Jake's advice is spot on and for your initial efforts, some differences in the ATV settings on the radio for aileron deflections to get the throws to match isn't going to be a big issue. Get 'em as close as possible with the mechanical setup and just do the rest with the radio but I'd attempt to use subtrim first to center up things. The reason this will be an issue down the road is when you start using mixes such as a rudder/aileron mix where the rudder is master with the ailerons as slave. This is commonly done to eliminate roll coupling when doing precision aerobatics and if the servo travels are disimilar in the ailerons, you'll get an un-even deflection when you roll in a mix. It can also be an issue if you use multiple rates on the control surfaces like I usually set my stuff up with what I call a low rate for snaps and such, a high rate where I usually fly and 3D rates. How you do that or what you might want depends on your radio capability.
Most of that stuff isn't something you'll really get into initially, but will if your son keeps flying as he gets better and starts asking more of the airframe. So don't get wound up about it too much right now, just set 'em as close as you can get and go for it.....