We still get requests for a higher capacity version of our SP-445. Most ask for 6 sheets, some want 8; a few have asked for even more!
So we've decided to ask: do people want a SP-645: 6 sheets, 700 ml of chemistry? Price would be slightly higher, in part because it comes with three film holders.
Let us know. BTW, it would probably be March 2021 before it would be available.
I bought one sp-645 before Christmas and I am very happy with it. I intend to buy one or two more. The appeal for me is that I can use the same amount of fixer as I use in a Paterson Universal tank (2x35mm or 1x120 film) so the chemistry maths gets easier.