I am working on my sShaking Skelli Cage Prop and was planning on running it with the Saturn Windshield Wiper Motor, but have begun to wonder if the High setting will shake the cage sufficiently. It really seems too slow, although I have not hooked up a weight to actually test it. I saw what Zombie-F used which was more or less what was lying around. I guess if the windshield wiper motor is not sufficient, does someone recommend a particular motor based on RPM, torque, and perhaps most importantly cost?