I wish I had read this thread last week, before I developed my Ilford 3200 (shot at 1600)*. Negs are underdeveloped, even though I added 15% more time to the development. Plus the film looks fogged (at least the base fog is stronger than most films, don't know if that's normal). I don't shoot this film much, but would like to get a handle on it for when I really need the extra push. That said, I seem to have better luck pushing Tri-X or HP5+ to 1600 than using this at 1600. I guess I need to do a proper test of all three in different lighting conditions and different developers to see what really works best.
*Shout out to
@Andrew O'Neill, I was shooting at the Miike mine in Omuta (inspired by your work there). I didn't have a tripod with me (although I think it would have been allowed) so was pushing all of my films in the interiors while there. I just now need to organize my darkroom so I can get some printing done, even if it's just work prints for now.