[Ed Sukach]

Now - my opinion, for what it is worth: I have an idea that the rotation, like the agitation of a hand-held tank, is not really all that critical. I'd start at about 30 RPM, and increase the rotation speed if I detected uneven development.

Does this depend on the amount of developer in the tank? If somebody was using the bare min I'm thinking everything is more critcal.

I don't think so. The idea of rotation is to take the place of agitation, and to prresent "fresh" or relatively so - chemicals to each individual area of the media.

There are minumum amounts of solutions needed to "cover" in processing - whether or not they are sufficient for processing is another consideration - but I don't think there is much of a link between the amount of chemicals and the rate of rotation/ agitation.