Where to attach cap?

[imstock]

I have Radio Shacks schematics, thanks to our search feature (insert applause here) and a reply by Texan several months ago. But even with it's help I am second guessing myself about where to solder my capacitor. Prior to my dis assembly it was bridging the positive and negative terminals on the motor, but I seem to remember the original cap was soldered to the motor body and the positive terminal. Does the body motor case sever as a ground? If so don't both these methods provide the same outcome?

I am bypassing the quick disconnect, and hard wiring the motor to the board using 18g wires. I am running everything stock other then the Spinbrush motor. Alkaline batteries, RWD, etc...

I wont be completing the wire job until this weekend when I am off again, so any info would be appreciated.