I haven't shot anything over ASA 100 in decades. The only exception was when I was shooting sports in the early 1960s
using a 4x5 Graphic. I did available-light basketball using Royal-X Pan way above box speed, which was 1250. The
images were all unlarged down to one- or two-column newspaper size, which look atrocious with an 80-dot halftone mask
regardless of what you do. I did some regular prints that looked fine.
I use Diafine for tray development because of its insensitivity to temperature variations, and have been quite pleased
with it using APX, FP4+, and Acros. I don't shoot any t-grain films, nor any yellow-box products.
BTW, I normally use Rodinal for roll-film development in tanks. Have not had good luck with 4xt tank processing, but
that's a process control problem, unrelated to the specific developer in use.
Everybody's tastes/expectations/experiences/standards are different. Certainly I don't claim to be a sooth-sayer.