I finally got around to testing my equipment with two old KB100 films that had been through a Lomo Spinner camera. I used TMAX developer and fixer. I had trouble regulating the temperature, and I suspect the developer was a degree too warm. I have ordered a better (analog) thermometer, the digital one I used was slow and couldn't make up its mind.
One thing I noticed was that the black leader was very dense, noticeably more so than when I developed the same film in XTOL at my old photo club. I'm not sure if this is due to overdevelopment this time, or if I previously underdeveloped the film. I used a two-bath fix as recommended by Ian C, but no hypo clear. Is HC needed with rapid fix?