I would like to include chins in my back workout as they are obviously the best width builder around but I have a few queries. Firstly I am 6 foot 2, how wide should my hands be, very wide or medium width? Secondly I struggle at the moment to do one or two so I ahve been doing them on the assisted chins machine until my strength gets up, is this ok? Lastly when I do my assisted chins I use good slow technique but never feel a pump ion my lats, it's more around my shoulder joint. Anyone else get this or know why it happens? What are your opinions?