Im currently working out 4 days a week (upper, lower, upper, lower body). For my back Im doing pullups on both days 4-5 sets and then BB or DB rows. I feel like my lats are not getting enough work during those sets of pullups. Its because I can do only about 3-4 reps. In my first set I can do 6 reps then my grip starts to weaken, I jump down for second and back up and I can do 2-3 reps more. Then even if my grip is stills trong I just cannot pull myself up anymore. I feel like I should do a least 10-15 sets of pullups to actualy feel it in my lats (yeah, Im doing pullups with correct technique). Its due to the low reps my sets consist of. If I could do 15-20 reps, maybe even 3 sets would be more than enough. But not now... What should I do to improve my pullup strength? I thought about doing pullups also on off days because I have pullup bar at home (and actually it feels more comfortable doing pullups on that one than on the one in the gym). But wouldnt that be overtraining? My goal basically is to get very wide back, develop my lats to its maximum potential and evolve to the stage of pullup strength when I will be able to do many advanced pullup variatiations and hold that position effortlessly.