Originally Posted by EricT

OK, no one here but me sees the problem in that video?

Hands toward you (suppinated) is chin ups and hands away from you (pronated) is pullups. The width of the grip is self-choice on either. I usually focus on pullups like Pity but I do chin-ups also. You can do both. Chin ups will put your bi's in a more favorable postion. People posit slightly different back effects for the two but in the grand scheme of things I doublt highly it makes a huge difference. Variety is good in any case.

Most people can do more chin-ups because of more bi's being in there and chin ups are a very good bi developer (pullups too). But if you do a lot of chinups you back will grow just like if you do a lot of pullups. Unlike rows it's very difficult to not have some bi's in a pullup no matter what you do but either way, in the long run you get a strong back. Frankly chinup position is uncomfortable for my forearms, elbows, shoulders.... I use chin-ups to get more reps in. Although I've also done pullups and chins separately in the week because of the aforementioned bicep advantage.

I usually choose a neutral slightly wider than shoulder width grip. I've been known to do wider grip for laughs but if you do a lot of pullups wide grip is kinda hard on the elbow. A neutral grip lets you keep your arms tucked a bit more inwards and that is a little easier for the elbows...although if you get tendonitis you may find that using slightly different elbow postions will make a difference to get past it.