If you are a novice, still learning (like anything within a year of solo is still somewhat novice), then you need not worry about dual rates yet. A good negative exponent is much more effective than playing around with dual rates.

Set the plane up for no more than what the manufacturer recommends for soft action.. usually what they want for maiden flights. Then add about 30 % negative exponent and fly it. It will seem soft for minor inputs, but responsive for harder inputs.

If you are more experienced, well, keep the exponent and just dial in a bit more throw in the control surfaces. Once you master the elements with this sort of setting, then consider adding some of the dual rates recommended, but be careful not to add to much at first. It will scare the heck ouit of you. Those .5 second rolls will drive you nuts!!!

CGr