Upload & Sell: Off
Sorry, I wasn't paying attention to the Zeiss Ikonta! !
I developed all my MF & LF, even 35mm, together in single batches in a Jobo processing tank on a roller base. All speeds, all brands in the same batch. I used a technique I learned about over on the LF forum and it really worked well - - I have hundred of negatives processed this way. I hesitate to talk about it, because whenever someone would post about it, it always generated a lot of negative commentary - - most about how it couldn't possibly work. But if you are interested, let me know and I'll send it in a PM... but it requires using a roller base.
But my point of bringing it up was that it was a great way to deal with grainy films. Yes, the Arista EDU 400 was Foma, at least a few years ago when I was still shooting big batches of it. I think my favorite 400 was the reformulated Kodak Tmax 400. It really had a great look in both 4x5 and 120.