Juan,

I usually for imac use dual rates with elevator at 15 degrees low rates with 30% pos expo(JR 10x) for high rates about 25 degrees and 45% expo. I only use this dual rate for spins. On the ailerons I use about 20 degrees low rate with 40% expo and 38 degrees high rate and 60% expo. This is only used for snaps. Rudder is what ever percent to hold knife edge at 1/2 deflection rudder. with about 40% expo and high rates as much as you can get with 65% expo.

for 3d flying. I use a flight mode that consists of my normal imac set up for smooth maneuvers, one that has all the throw I can get, Then I have another 2 that are the same as listed just with smoke.