OK, i need help! My helicopter vibrates like crazy on the ground, and is now even harder to control in the air. and if you go over top of the heli, and spin the blades up so it doesngt lift off, the top thing moves around in a circle.....like wobbles sideways in a circular motion. So i was wondering if the (forget wht its called) the thing that holds all the stuff is bent? or are the blades flying out of track. I have no clue what to do sooooo...... HELP please. Oh and i was wondering if the plastic cemetrical blades are good for the CPP? Thanks