That close grip, pull to the lower rig box, is excellent. Using a pair of lat handles or inter lacing the fingers together. Seem gymnast doing a form of these using a bar or a pair of rings, in regular training.
Rope climbing (free form...feet held out to 90 degrees..pure upper body strength) is not included much in BB'ing workouts. A very overlooked exercise for building lats and larger biceps. Probably the liability of injury, if a person was to fall or otherwise get hurt, in the present commercial gyms's, spa's, physical Fitness Centers, etc..or what ever you want to call those less than serious training places.
Negative one arm chins also have a place with serious lat training. Good Luck.