RE: are these blades any good for cp pro?
Yesterday I picked up some 1/16" collars from my hobby store. I've read on the HeliFreak forums that these can be used as flybar weights for the 250. It works great! It really makes the 250 more docile for a new pilot.
Also I have been flying on Phoenix alot. Last night I tried the Balloon Pop challenge. It really helps in orientation training. You find youself flying in all types of orientations rather than just practicing circuits/3d.