I'm going to be using 4x5 sheets for the first time in years, and would prefer not to develop in trays or in my old FR daylight tank. I'm spoiled by decades of fast chemical changes with Paterson tanks, and would like to use something similar for sheets. I gather that the HP Combi tank is a fairly slow fill (in the summer my processing temperatures can reach 80F, with developing times of 6 minutes at that temperature) and I know my old FR is even slower.(posted 8526 days ago)Paterson doesn't make reels for developing sheets in their tanks. Jobo does make such a tank, and while I gather it isn't made for inversion agitation I understand that it does fill and empty rapidly, and can be used by just rolling it back and forth on a surface. I don't have the space or budget for a full Jobo motorized system, wonderful as it may be, and I'm wondering if any of you have experience using the Jobo 4x5 tank for non-motorized processing? Your thoughts and experiences will be appreciated.