Greetings DarkWombat:

Thanks for the input. As it turns out, evidently the main rotor blade holders were sticking, because I took everything apart, lubricated with graphite, and reassembled it and now it is very stable again. With that done, I replaced both the main rotor, the swash plate and the rotor blades. She looks as good as new and flies extremely well again. I was beginning to lose hope.

Now that the rotors are new (aerodynamically clean with no dings) and balanced, it is very stable. I don't think I'll be taking it outside because I can learn everything I need for basic flying while in the safe confines of four walls and a roof ;-)

Actually, I'm considering sellling my Blade and moving up to a bigger chopper. What would be a good step-up?