I’ve been shooting Tmax 3200 and 800, 1600, 2500 and box speed.
I recently heard FujiFilm was discontinuing Neopan 1600 so I grabbed a few rolls. I heard the beads on this stuff were the size of golf balls, and had excellent grain so I bought a couple.
Highest speed C41 I’ve shot is Superia 400 and Kodak Portra 400vc, also recently discontinued