5 pullups? That sounds plenty strong to me. I thought I was strong enough to go rock climbing even when I couldn't do a single pull-up! (granted, it rather limited how difficult a route I could pick). But yeah...I'm actually pretty thrilled with my imperfect pull-ups. It's a big deal to me :) I would like to try boxing but I'm afraid of getting hit in the face since I wear glasses (and not wearing them isn't an option for me...I'm as good as blind without glasses)