As to Bobby's original concern regarding the size of the rollers; I'll be damned if I can see how that's an issue. I run the drill pretty much full-bore, it pulls the grain through very quickly and gives a kick-ass crush. Probably took a minute, maybe two minutes, to crush the grain for yesterday's batch - including re-filling the hopper halfway through. Didn't time it, it might have been quicker. Crush seems just as good running full-bore versus at a lower RPM. Seems like the smaller rollers will also put less stress on the drill (I've heard of drills getting burned out on some of the bigger mills; not an issue if you've got a separate motor, but a potential issue for guys like BM and myself using 40-year old drills to run the thing).