I went with the H9 Pulse and an OS 46ax. It was an EXCELLENT plane. I learned ALOT on it; including tons of aerobatics(as much as it could do). Highly recommend. if you dont want to spend on the Os engine...go with the Super Tiger 45. its alot more work to break in and get running right...but once you do, itll give you TONS of power - especially for the price. i always thought my super tiger 45 had alot more power than my os 46 for sure - and cheaper too.