One thing I HAVE FOUND, is that temp control is the largest hurdle to overcome with Prestos regardless of the stirring motor. BaitJunkys gave me some guidance and I put together a PID controller for my pair of pots that keeps my plastic within 1-3 degrees of a set temperature for a couple of hours..and more if I need it.That said, I have used BOTH the motors from Bear's AND BaitJunkys... Each had good and bad, but BOTH will stir the plastic. But the so will a STICK! I DID find that with my BEAR'S motor, salt didn't suspend as well as the Baitjunkys....Maybe because of motor speed, I dunno for sure.... the SMALLER blades on Baitjunkys are once in a while a problem when the injector is sitting in the rack. But that is because when reintroducing sprue and runner cutoffs,I think I dump too many and they tend to hang near the injector. takes a while for them to integrate while melting. As a personal favorite, the BaitJunkys suits me fine...