I have seen Tmax film exposed and developed under many variations.
It is one of the most underrated films out there. I did not like Tmax until I started controlled processing with a Jobo and it has proven to be a wonderful film. BTW very rarely have I seen it used as a studio film but only as a fine art film for harsh conditions. It does require some skill to use it properly.
Which TMax do you use? The difference between TMX and TMY is galaxies wide.