Vary your grips but stick with alot of close grip work and every now and then go wide to hit it from a different angle. You should have some width and thickness in no time
mean it will add width to your back.....at all! That is a myth!
Close grip palms up pulldowns are the best exercise for your back.
If you back is a problem....ask yourself this....are your biceps getting a better workout when you are doing your back or are they holding you back from a better back workout?
Start off with a dumbell or nautilus pullover and superset that with the close grip palms up pulldowns and your back will hurt!
This will make the biceps in a stronger position and therefore increase the intensity in your back!!!!!!!!!!!!!!!!1
Slow down the reps and squeeze at the contracted position....feel the back as you do each rep.....if your not feeling the back in each rep you are not doing something right!
Try this ........ for example grab a wide grip for the bent over row and do a few reps ......now you do a close grip on the row! I bet your lats felt alot better doing those reps in the close grip!