To get rid of the magenta dye, fix the film, then soak it for about 5 min in a solution of sodium sulfite solution (2 tablespoons in a liter of water). Then wash the film and the magenta dye should wash out.
I've shot and developed a lot of Tmax 100. Personally, I strongly prefer Efke 100 developed in Pyrocat-HD to Tmax 100 (developed in anything). Efke 25 in Pyrocat-HD is great too.
TMY 400 is also great in Pyrocat-HD (if you like its somewhat weird tonal response characteristics).