Have you gotten the power issue resolved yet? The flashing lights, or the green light turning red, is an indication that the 3 in 1 is pulling a lot of current. That's why it only does it at full throttle.
Have you tried removing the blades and checking to see if it will spin just the shafts and keep the light green? If it does, try just the lower blades, then try just the upper blades. I don't know exactly what I'm looking for, but more information would help.
If you do get new motors, the Xtreme ball bearing motors are very good. And for just a few bucks you can get silver brushes. The Silver Brushes deliver a ton more power, but you have to break them in.
Most of the information that's worth reading is in here somewhere.
[link=http://www.rcuniverse.com/forum/m_7035042/anchors_7035042/mpage_1/key_/anchor/tm.htm#7035042]CX stuff[/link]
Note that I just moved the first article so that link is no good. Use this one. [link=http://www.rotortech.ca/CX2/]Soloboss CX2 guide[/link]

We gotta get the list fixed.