Well, it's hard to make an argument against using Tri-X film and D-76 developer. I see that you are using Rodinal developer and that's OK, but I think D-76 is an all around better choice for faster films in general. There's not much you can not do with that combination, and it is very forgiving of moderately sloppy techniques. The only other film in that speed class that I prefer is Tmax 400