soldering ?

[DrKnow65]

Glitch may be the key word. Your radio antenna being sandwiched between all those motor wires could very well be the problem.

I wouldn't suspect the soldering if it takes off hard and only has the problem at a higher RPM, as most of the amps are pulled getting the vehicle into motion, not as much speeding it up...

[hobbimaster]

Did it glitch before, or just start reciently? I see what you mean by wiring everywhere. You could cut the shrink wrap off and unsolder some of those leads, and shrink it back with clear 6 cell stick pack shrink wrap. But otherwise nothing looks as if as Drknow65 mentioned, the antenna wire being close to the ESC may be the culprit.
Another note, if your BEC circuit is being starved by the motor that will cause it to glitch too, some ESC's have a weak BEC circuit, some have had to add a capacitor or studder stopper to RX. http://www.horizonhobby.com/Products...ProdID=SPM1600