Jon Porter said he got nearly identical result with DD-X and XTOL with TMX. I think TMX is a strange film, which produces extremely fine grain in HC-110.(posted 8212 days ago)Incidentally, John Hicks has suggested a number of times that DD-X is essentially a liquid version of Microphen. Microphen 1+1, 1+2 or 1+3 has been my best developer for TMX for last few years. I haven't tried DD-X and I probably won't. But those who consider DD-X might want to consider Microphen also.
(With HP5+, XTOL produces much finer grain than Microphen though.)