I used Plus-X on occasion as well - less grainy, obviously, but overall I liked the quality of the prints from my Tri-X shots better. Difficult to explain fully with few words but with the developer (Agfa Rodinal) and paper (Agfa Record Rapid) I used mostly, the best prints I made had a sort of luminosity that just didn’t come out that way with all the other combinations of film, developer (Ilford etc.) and papers (again, Ilford etc.) I used. And then came the PE/RC (plastic based) printing papers which were slightly easier to process but never even got close to the baryta (fiber based) papers in image quality (much less silver content).
Super-Double-X must have been way before my time - never even heard of it, best as I can remember. Kudos to your dad for teaching you lab techniques. I had to go the autodidactic route (not that it’s rocket science...)
I had to go the autodidactic route (not that it’s rocket science...)
It may not be rocket surgery, but it is alchemy.