Since the 1990s, working with a broad range of emulsions (including the defunct Agfa offerings, I have found myself more and more dancing down the path with the T-Max emulsions. TMY (400 ISO) in the studio and TMX (100 ISO) in the big wide world. A part of the reason for that is that I was given a few thousand dollars worth of TMX Readyloads which I have been wading through.
But there is just something about the look of Kodak emulsions that doesn't sit all that well. Plus-X was interesting but is long gone and the sensational Panatomic=X was only available as Polaroid P/N.
Through some excursions into roll film my long-dormant interest was piqued and I bought a box of 100 in 4x5. I process it in Ilford Ilfotec DDX 1+6 and the resultant negs are just flat slices of paradise. Put a batch of 3 through this morning and can't wait to scan them and witness the wonders they contain.
Funny thing is, back in the 1960 and 70s I used FP2, FP3 and FP4 almost exclusively for commercial work. It is like the comfort of old slippers getting back onto the old path.