I'm just moving into my 2nd plane from my Nexstar trainer and I need some advice. I've decided to purchase the Futaba 9C radio for it as it will give me plenty of room to grow. But, I'm unsure of which engine to purchase. From advice at the airfield I'm looking at the Great Planes U Can Do .60 ARF. The engines that I'm looking at are the OS .61 FX, .91FX or the FS-91 II Surpass. Obviously as I'm still relatively new to the sport I'm not going to be doing to many stunts to begin with. I'm more interested in the slow flying characteristics now but will probably be looking to do stunts in the future. Should I begin with the .61FX or .91FX to begin with and save money? I'm also afraid to have to much engine for my overall skill level. When I'm ready I'll upgrade the engine in a year or so. Or would it be better to purchase the Surpass now? That way I know the engine won't be underpowered for the plane and I will have an engine that will last as long as the plane.

Any Advice you can give me would be appreciated. Thanks!
BR