Try this lat-dominant drop set on back day after you're done with your heavier, progressive-overload work.
Don't let the "DUDS" acronym fool you: they're far from a dud finisher. Pick literally any lat pulldown or pullover variation and do this:
I'd suggest doing it on a well-designed pullover machine.
Think of it as metabolic-stress type work, which should come at the end of a workout and only be done for ONE set. Don't abuse it! Maybe sprinkle it in every other week.