Dude, one thing that helps with me is to pull through with the elbows and really flex the lats while you're at the bottom/top of the movement. Try and mentally eliminate the biceps, visualise a pair of cords pulling your elbows back. It's hard to describe, now that I think about it.
I love T-Bar rows, though, done with a neutral grip (I do mine with a barbell and the V-bar extension piece from the pulldown machine)
Peace.