Thanks, all! I used 3 L today (I have Cesco trays for developer and stop) and it worked fine. The rest of the process, now that's another story... Well, the prints turned out ok, mostly. But man is it a PITA to deal with paper that big! And then getting the liquid out of each tray afterwards without spilling everywhere (I'm not exactly musclebound). I don't like getting chemicals on my hands, so I used two tongs for each chem - only dropped or knocked 5 onto the sink or the floor. I think I only scratched one (probably with the glass plate when I put it down) and I think only one has a slight bend in it (and it's outside the image area). I got 9 16x20 prints (from 2 14x17 plates) and 3 11x14 prints (all the same) done in nearly 4 hours. Need to do some adapting and modifying before next week.