When I had the light leak, the usable negs were correct in density overall, just with depressed highlights (low contrast). I did get significantly better results with selenium toning (30 sec, 1:3 Kodak selenium toner:water, no prewet), but nothing that made me want to do it that way all the time.(posted 9133 days ago)If your overall density was correct at 7.5 minutes, don't change a thing yet unless that light leak was BIG. Just load your reels while everyone else is asleep (I do that with my sheet film now). Not that I have anything against changing bags, I just like to spend my nickels and dimes on film.
Tech Pan will eventually be second nature. "You'll love it. It's a way of life."
I wasn't kidding about the loading, actually. TP goes on my ancient Nikkor reels much nicer than TMX or TMZ. I find Ilford much easier to load than the thick Kodak stuff, too. The only time I used plastic was in 120 with TMY and TMX, and you may have something there -- it did go on pretty easy (if only TMY wasn't such a disappointment at 800).
Congrats on your S2: I'm an F3 & 50/1.4 guy myself -- if it's not interesting, no lens can help you!