Actually, you are at a deficit because you haven't learned to fly yet. Pattern is not all about mixes and expensive radios.
Learning to make your fingers mix the sticks now will help hone your skills as you progress into Presicion aerobatics. If you
are doing a contest this weekend you will be flying sportsman. You will be so nervous standing in front of the judges for
the first time you might forget where the rudder is. Worry about the important aspects this weekend not about whether
your planes dives or rolls a bit with rudder input. Fly straight lines, Make sure your 45 ups and downs are actually 45 degrees, learn to find the
center line, learn to fly in the box, and learn how to make maneuvers look right. The last thing you should be worried about is
flying the rudder. I flew the sportsman routine last sunday a few times and the only time I used rudder was on my Stall turn.

When you get a pattern plane you can worry about mixing the channels, right now just relax and enjoy your first contest.
I have a flying buddy that uses the 6EX 2.4 in his Giles 202, and he has done a good job at the last few pattern contests
he attended.

Good luck, May all your scores be 10's
Chris