I tried some TMY in the old Beutler's formula and found it to be a very sharp but aggressive developer. Comparison test prints at 20" against both Barry Thornton Two Bath and Pyrocat-HD showed that the Beutler's was clearly sharper, and it brought out a lovely grain structure that wasn't too obtrusive. There was, however, some mottling in areas of continuous tone, just small spots that were darker than the surrounding areas. I always use SS tanks and leave and airspace at the top, agitating by 5 over and back inversions per minute, so I don't think it was an agitation issue. Could it be the sodium carbonate accelerator? Could I maybe try a higher dilution of the sodium carbonate or use sodium metaborate instead? Most of my work over the past several years has been developed with Barry Thornton Two Bath and I'm getting great results, so maybe this is just chasing a tiny, incremental improvement that is only visible at 20" BUT, I would love to go to a single bath metol-only developer to make things a bit simpler, as I could then feel confident running 4-6 rolls of 120 at a time.