Thanks, Tom.

Part of the attraction of water bath processing is that if you're printing several negatives in one session, and some of them would work better with water bath processing, then it's not so hard to add another tray of water to the setup and then just dump it to get it out of the way, or if one uses a water stop anyway, just refresh the rinse tray and use it for the water bath with no agitation. Controlling contrast with different developer dilutions means having to group negs by contrast in advance or having enough space for extra developer trays.