I have a mcx and love it, i was doing some research on the cx2/3 and found this video<a href="http://www.youtube.com/watch?v=nGUTAwItRAM">http://www.youtube.com/watch?v=nGUTAwItRAM
a</a>nd I realized my mcx was performing the same "toilet bowl effect" as seen at the begining of the video. And even with fully chargerd, brand new e-flite batteries, it doesn't want to stay elevated when it hovers. So would it need a new upper rotor head when it starts acting like this, like the cx3?

EDIT: I also forgot to mention it wobbles lately while doing pirroettes.<br type="_moz" />

Something is bent or binding, causing friction and wasting power. As a start, hold onto it and power up the rotors. Look carefully to see how much the rotor mast is shaking. Then look for trash, such as carpet fuzz, in all the wrong places.

toilet bowl effect is caused by a bent flybar 99% of the time.

wobble is usually caused by unbalanced/unmatched blades, have you installed new blades lately? they might be the cause.

I cant see any binding going on, I'm sure the bearing for the main shaft might need replacing (a little super glue may have gotton on it while repairing body posts) But it isn't locked up but I bet is gummed up a bit.. Ill replace the flybar and see about the toilet bowl. and ill reprt back. and know the blades haven't been changed lately, and after months the edges have gotton dinged and what not( not so pretty but not that bad )