larry,

Do you have access to a tachometer? The more headspeed the better control and also easier to fly. Have you tried idle-up yet? I have the DX6 also (but now have superframe v2 so a little different settings) but I had CCPM all 3 set to 60% just as a starting point. I would check the headspeed though- usually the problem is shown by that. When first building a trex the rotor sound can be down right scary :0) so most people set them up too slow.

Good luck!