Nrad2000:
IMLTHO you should at least consider putting both ailerons in airbrake mode (up) for landing.
Have it on a switch in case you get the bouncies. By bouncies, I am recalling my maiden on this plane...at 6#11oz.
If I slow it down to trainer landing speed, it would bounce.
Slower- still bounced
Slower- got waggly just before landing.
On a windy day, that waggly leads to a near-ground stall.

By putting both ailerons up from neutral about 10mm it dumps a bit of lift and speeds up the landing so that it is a lot less critical.
Without 10mm of airbrakes, or maybe I can call them spoilerons, the nose tends to pitch up as you get down to landing speed, so just be ready. Not unstable, just pitching up a tad.
Hope the maiden goes well!

PS- Use subtrim on AUX2 to get the ele halves the same at center, then reset the ATV of AUX2, back to subtrim....
2-3 loops of this and they will be identical....
Another thing that you can do (if your are in the other mode) is rotate 180 to put the output axle of the servos further from the surface (forward) which minimizes the asymmetric effect of the over-n-under servo arrangement with the ~25% longer pushrods.