Well even after monkeying around with the geometry on aileron linkages (that's what I needed from the gear channel), I have 83% on one side and 119% on the other one. I think this stuff can go all the way to 150%, but you can/will have a problem if set there and need or have some sub trim dialed in.
If that doesn't work, you'll need someone with more experience on this radio than me. I just bought it recently to play around with on my smaller models until my new X9303 gets here...
