I'm going to do some "dry runs," then, with a prewet/presoak/prewash and see how it goes (even though I haven't noticed any problems without it). I use a small Paterson tank and water bath, in which I preheat the tank. My biggest concern with prewetting is developer dilution, as I reuse the developer for up to ten rolls, consistent with the manufacturer's recommendation (it's the R/D mini kit). I just got a fresh batch of chemicals; let's see what happens.

Thanks, PE.