Is everyone pre-soaking the film before adding the developer? The instructions that come with our Rollo Pyro kit recommend spinning a weak solution of sodium metaborate in the drum for about 3 minutes, dumping it, then adding the developer. We found that the old Bergger BPF-200 really had issues with streaking if you didn't do this, and the modern Ilford films are sometimes prone to streaking as well.

-Dana