i have been heli piloting (self taught) piccollo 1st then lately on glow powqered,the guy at the local club suggested that i got a sim to help me,this was after i saw him fly raptor 60 with 90 engine,loooping and inverted,very impressive for my first day at the club!!!he said that he learned the hard way,expensive crashes etc. then got a sim and i must go with the experienced and try one,...i've got one on order ..can't wait till it comes