Ahh, the joys of computer radios.

As you only have been with the hobby for a year, I will assume little knowledge.

First, set up the ATV on the radio to 130 % on all surfaces. (the Futaba goes up to 140%, but you need some lee way for setting the trims on the tranny)(silly I know that it goes up beyond 100%, but that is the Japs for you). You do this to get the most out of your servos. (eg if you set it at 50%, you will only get half out of your servo compared with 100%).

Now set up the control linkages so that you get the recomended full throw on all the surfaces with the radio set at this level. For your Waco, you have 5/8" up and down on aileron, 1" on elevator, and 1 3/4" on the rudder. Moving out the control at the servo horn increases throw, out at the control surface decreases throw. It is tricky holding a ruler against the control surface, holding it still, and then moving the control on the tranny, but it can be done. For elevator and ailerons I usually rest the ruler on the ground, so you are measuring from say 6" to 7" rather than 0" to 1".

You have now set your "full" or "high" rates.

Now you set your "low" or "Dual" rates using the dual rate function. For the ailerons you will need something like 60% (5/8 divided by 3/8) and so on. Once set check with the ruler. Check the switches are moving in the right direction for you. Most people use up (push away from you) for high rates and down (pull towards you) for low.

Now you are set. Check everything is working ok (never just waggle the sticks prior to take off, always check the control direction) and go fly. Having flown, you may want to alter the rates, both high and low, that you have set to suit your flying style.

As you are still new, you should experiment with different rates and levels of expo. eg, for all my planes, not just 3D monsters, I now tend to have -60% expo on low rate aileron, and -100% on high and 3D rates, and a switch to set in -100% on low rates (I have a 9Z so can do things like that). This is just the way I like to fly. I have less on elevator and rudder.