First off, welcome to RCU. I hope that we can help you get airborne.

As far as using exponential on your trainer I HIGHLY DISCOURAGE using it. What you are doing is overcontrolling the plane. This is perfectly normal, every new pilot does the same thing. You need to learn to have a lighter touch on the sticks. If you use the radio to "cheat" this you will never develop the skills needed to fly correctly, the radio will simply become a crutch that you will not be able to do without.

The cause of overcontrolling usually boils down to one thing. The plane does not react instantly. What I mean by this is that when a student moves the stick they don't see the plane react immediately to the input so what they do is move the stick more, and the plane winds up moving more than you wanted it. Bingo, over control. What I teach my students is to fly and then put in small amount of control on the stick AND THEN WAIT for the plane to react before moving the stick more. If you do this you will find that it won't take long before you don't over control to the plane.

I would highly recommend that you do find an instructor. Even if you have to drive a distance to spend time with one you will find that the time and drive are worth every minute. 10 minutes with an instructor is better than hours apon hours here on RCU, because he see what you are doing and then "talk" you through doing things correctly.

Ken