As a bit of a tangent, and hijacking my own thread:
On the subject of getting stuck and rice hulls, today I did a 3lb rye, 3lb wheat, and 4lb Maris Otter grist with about 2oz of rice hulls (not too much, just what I had laying around) and had no problems at all with the run off. I had thought that it might be more of a problem with such a large huskless mass in there, but after the crush it looked pretty rich with husks and was fine.
I did condition the grain for about 10 minutes before I used it. I'm not sure how much it matters for things without a husk beyond keeping the dust down a bit.