Thanks to all who advised me prior to my first attempt at processing XP2 Super film in C41 chemistry at home. I processed six rolls of 120 XP2 Super film on Friday and it went quite well, so far as I can tell. Maintaining the 102F temperature wasn't all that difficult, and I was able to sponge the film before hanging it to dry, as I do with conventional b&w film.
I've gotten as far as making proof sheets and the results look good, with perhaps a bit more contrast than I'm used to in lab processed film.
East Snook, TX