I learned on an Avistar, as well, beginning last season and stayed with it for about half of this season. I think our approaches to learning are the same. I finally decided it was time to move on after getting proficient at spins and snaps etc. I could have learned even more but decided another platform would be fun and take me further. My take was to not mod the Avistar but keep it for fun and to let my girls fly it after turning the throws back down. I chose the Four Star 40 kit as my next plane but ended up getting a Super Sporster 40 at a swap meet and flying it first. Either would be a good next plane. The SS is great. It can fly fast and slow. It handles the wind very well and really is point and fly. It will more of a jump than the Four Star but it wasn't too much like I thought it might be. This route costs a bit more than the mod route but then you have two planes in case of a crash. Having a second plane makes me a lot more confident. :-) From what I have seen any plane like the Tiger, Four Star, SS, or stick would be a great next plane though. I think the SS is the best looking of the lot. The SS has gotten me really excited about aerobatics, I just ordered a Vectorflight Edge 540 60 for next year.