[3dude_2231]

we had the same prob, too.
here's what you should do:

* if your using motors from different years, place them in a logical order,
for example: 2 08s in the front, and 2 07s in the back.

* grease the gears evenly, and don't be cheap =]

* calibrate the Victors

* use wide and even cables between Victors and fuses, just in case

* make sure, and you better be real sure your joystick is calibrated and trimmed
and your code is correct.