Shoulder mobility issues...when doing pull ups

[Rucifer]

Been awhile but I've recently started getting back into pull ups. I do have some issues with them though - specifically if I drop all the way hanging before the next rep. I hadn't done pull ups in awhile but I know I have nagging shoulder issues from years of improper weightlifting techniques. To make a long story short - do you have any advice? For now I plan on not dropping to a complete hang - it seems to be better if I don't go all the way down. Also doing them reverse grip seems to alleviate the problem but still...would like to do standard pull ups as well.

[robertscott]

T-spine mobility drills in your warm up