Keep at it and practice, practice, practice! It is a delicate balance between airplane design, size, throttle, engine, prop and wind. Sounds easy huh Get your hands on some of the Morris tapes if you can. They will shed light on what can and can't be done. It's a different game once you see it done and know that it's definitely do able. Tony Ayer was doing this stuff back in 1995, years ahead of his time. It's a shame he doesn't fly anymore. I've spoken several times to Tony and Walter Morris back in the day. They always had time for their customers. Also get a couple of the Propwash "Ballet Of The Sky" freestyle videos. They are awesome
In the mean time, check this link -->
http://www.rcuniverse.com/showthread...hlight=horizon

It will answer some of your basic questions_Bobb