I dont think it is the servos. Alright, when i first put in my new crystal and turned on the tx, i switched to my lt40 model. The as soon as i did that, everything went one way and locked up, it would barely move. I changed the modulation (shift selection thing) and everything was fine after that. I hooked up the buddy box, and when i switched it over, everthing went like it was before i switched the modulation.