Hey there I just wanted to put my 2 cents in. I have a Nextstar and love it. It will knife edge and many other things I have put it through. I hear alot of bad things about it but have never had a bad day with it. Like I said I love it. I have also owned many other trainers I think a very good one is a Hobbico Avistar, They are very good fliers it will do anything you want it to. Well good luck and keep me posted.