I'm a noob but am learning quick. I tried the rumble motor (got a professional one, i.e., the size as those used in cell phones) and hooked-it-up using a potentiometer (variable resistor) as our beloved Erv indicates for CF v. 5.1. It works well enough, but alas it doesn't provide nearly enough vibration regardless of the speed of the motor, and it is no good running all the time (linked to main LED) but rather s/b run only on a clash (linked to the FOC LED die). Has amyone had any luck wiring it to the FOC die, or does this just draw too much current?