I switched to HP-5 for it's ability to handle the highlights a little better, and am now after four years of it with both pyro and D76, trying out Fuji Neopan 400, which seems to have both highlights under control like HP-5 and tighter grain than either. That said there is a Tri-X "look" that time and again I see from others work that makes me jump up and pay attention, but I don't go in for mystification. It's mainly a little grit and shouldered highlights.