When it comes to CX and CX2 heli I use the following guide. Written by soloboss, who seems to have these critters down to a science. And he writes so you can understand it. If you are new to the CX, lots can and will go wrong as you bend it up flying into things, dropping it, kill the batteries from running them too far down, etc. Plus at some point you start wearing parts and want to hop it. This guide helps understand it all.

http://www.heli-wiki.com/mediawiki/i..._and_CX2_Setup