Yeah, the "call" afterwards is sort of just a sign that you're still interested i nthe other person, and weren't just in it to score.
Asking out on a date, trying to meet up for coffee, whatever, are good day-after calls. Giving a C- and a "good effort but needs some practice" might not be.
As far as condoms go, I've always been a fan of the Durex Featherlites. They're thinner than usual (because, seriously, people who say you don't feel a condom are either lying or insensitive down there), and slightly (just 2 mm) wider than average, which, to me, is the difference between painful blue ring around my penis, or just very tight. You may not have the same problem.
If you're unsure about the condoms you may like or not, buy some and try them out. If you're below-averagely endowed, don't be afraid to try some smaller-sized ones; if they're a better fit, use them. It's rather silly to use a condom that's too big and have it slide off. Sort of defeats the purpose.
Also, good luck mate.