With the 46 AX your Sportster is going to be a rocket compared to your trainer! I've been flying for about 8 years and have had two Sportsters, my recent one has a 54 four stroke on it and flys very well.

A club member had seen me flying mine quite a few times, and when he got his he asked me to take it up and trim it out for him. Well, he has a 46 FX (the AX is a newer version), and I was quite surprised by the speed and power the Sportster had with it. Very fast.

I think you'll like the plane a lot, but i'd recommend that you have your old instructor, or one of the guys with more experience fly it first to trim it for you.

Good luck, and have fun with it!

(Write again after you've flown her. )
Dennis-