Going with the advice of knowing what you're doing and understanding mistakes in all kinds of techniques, I wanted to ask about a pretty basic exercise: the pull up (mainly, palms facing away.) Me and my friend have been trying to work out together, and to be perfectly honest neither of us is in amazing shape. *However* we both have insanely concentrated muscles...in a few areas only. For example, my back muscles around my shoulder blades are crazy strong, so I've always been able to lift/pull etc. things really well. His arms are where most of his strength lies, so he can hold positions for endurance and things like that.
                                When we do pullups, we feel completely different. I'm feeling an odd sort of bruise-like tension in the area between my elbow and wrist (not on the palm side, on "top") while he feels almost like he's hyper extending around his elbow to bicep...connection...thing. Are we doing something wrong? Sorry if this has been discussed, but I searched and didn't see anything. Thanks in advance for help!

Holy god on high. I was a lot more tired last night that I thought I was. That makes no sense, at all. You're exactly right: I dropped several terms that, looking back, should never have been used lol. Your answer about the bruise feeling makes sense, thanks for that one, and what I MEANT to say about my friend is that he feels an intense burning and almost locked-up sensation in the tendon of his elbow. God...friends dont let friends post at ridiculous hours of the morning after long days. Sorry about that