I think that if you can do figure 8s, FFF, side/head on hover, and can control your LMH in windy/gusty situations, then it's probably time to move on.. My Corona has been a fantastic little heli, low maintenance, long flight times with my Lipoly pack, and incredibly crash resistant to all the dumb thumb incidences that I've put it through. But now, I think I'm ready to go to a CP machine.

I'm currently shopping around for my first CP heli.. either a Logo 10 or Voyager E or Eolo.. probably the Logo though, based on what I've read on the forums.. I'll still keep my Corona for those days when I want to try out something new or when my CP machine is out of commission due to dumb thumbs!

There is a post on RCGroups forum that someone will finally come out with a CP upgrade kit for the LMH.. That might be one way to go if you don't want to get a CP machine..