In one of my fateful trips to the local camera store today, I came home with a box full expired film(who could say no to ~40 rolls, including some good stuff like Neopan F and a bulk roll of XP1 Super, at about $1/roll). I also brought home a box of chemistry which I'm guessing is probably mostly dead, but there was an unopened bottle of HC110 and some stuff that won't go bad like acetic acid. What really got my attention, though, were the half dozen rolls of tech pan that expired in the early 1990s, along with two boxes of 6 little packets of Technidol. I WANT to shoot this, but am a bit concerned about it: 1. I know the "conventional" advice was to rate TP in Technidol at 25, but I'm wondering if I should drop it to 12 or even lower 2. How good is the shelf life on those little packets of Technidol? BTW, this specifically says it's for 120 only, and not for 35mm, so I don't know if that makes a difference. I've found some discussions of using dilute HC110 or Rodinal, both of which I have on hand(fresh) so I'm wondering if I should just use that as-is. I know D76 is a bad idea. Any thoughts on this?