Lucky me, one of the servos broke... The motor stopped moving freely for some reason (this I found out after breaking two gears and about an hour of trying to isolate the problem). So, since I kept the last servo I torched, I'm going to swap the PCBs and use the broken one's motor and chassis (and, apparently, gears). Because of this, joystick wiring/programming will be postponed to tomorrow.

Yay...