I just started doing pull ups at work in my factory on a hoist lol. I do them every other day, started about a week ago. I can force myself to do 15 now before it was about 10. In a week I've added 5 and I expect to be able to do 20 by the end of next week. I'd like to be able to do about 35 without struggling, that would be nice. Haven't tried the chin ups I don't think. I have my palms facing me so whatever that is, that's what I do.
I do have a question though, are chin ups/pull ups something you should do in reps or just do as many as you can and that's it. Cuz it seems if you do reps, you gotta wait a good 3-4 minutes before you can go another set, and even then it is a lot harder the 2nd and 3rd time around. But is it bad because you let your muscles cool down and then go again? I'm not a weightlifter I don't know much about it but I am getting more involved and starting to get addicted to it a little. I don't know much about reps and sets and such.