I’ll add my vote for the orbital.
Even though I own an spp445 the orbital gets used exclusively.
I don’t bother with the base, I just lift a corner gently like you would when tray developing prints.
I fill it with just under 500cc of solution and get even development, whether I’m doing 4sheets of 45 or one sheet of 810.
I did a couple of mods to it : cut off the “finns” on the underside of the lid, and glued some plastic half beads to the bottom so the solution circulates under the sheets too and the anti aliasing layer gets washed off more efficiently.
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