Anyone know of any panthermic (not fussy about temperature) B&W film developers currently available commercially besides Diafine? AB55 and 777 seem to be history (as commercial products) as far as I can tell. I've heard of a developer called DiLUXOL ULTRA FINE which I think may be panthermic but I know next to nothing nothing about it. Anyone know? Published formulas would be fine too if anyone knows of any.