I dun goofed
Well, I thought I was hot shit - about 550 rolls processed with no errors. Until tonight.
Screw you, Kodak, for making your exposed Portra rolls look like tmax rolls when one is tired and not actually reading the text on them
So I ran a big batch of TMY2 in Xtol tonight and was puzzled when it poured out piss-yellow. And then noticed that 2 of the 6 rolls were kind of brown... surely my fixer isn't that bad? No... it was 400VC. And now my fixer looks like Fanta.
At least I got probably-usable B&W images on the film (I expect huuuuuuge printing times with the dark brown base) and they weren't from a customer's shoot. Not as bad as putting B&W into C41 or the fixer in first.