A plug here for Hammer and other leverage pulldown machines..fuggin awesome burn and pump baby, as good or better than anything out there. Anytime someone questions the effectiveness of machines i think of something like this.
I usually turn the top of the DB in toward my body so it is at an angle. It just feels comfortable and natural.
is it true that the wider you go on pull-ups that the wider your lats will stick out?...or does it have to do with weight? i try to go wide and use extra weight around the waist
The key is to experiment all grip widths and determine which one works for you depending on your relative range of motion on ANY exercise. Too wide usually restricts ROM while too close doesnt properly hit your target area. You have to find the happy medium that will produce the best results.