We spend a lot of time trying to teach athletes how to shut lats off when they shouldn't be on. However, I know we aren't going to talk you out of trying to develop that V-shaped torso with lat work, so what are some guidelines?
First, you aren't allowed to do pull-ups or pulldowns until you pass the back-to-wall shoulder flexion test. No exceptions allowed.
Unfortunately, your old "what do ya wanna work today?" spur of the moment type training works a whole lot better than anything the Soviet Ministry Of Sport managed to cook up behind the Iron Curtain back in the 50's and 60's. Charles Staley explains why.