Oh man. We only fished 300-350 feet down, but almost always had to run 48 oz lead due to tides. I've gone through half a dozen packs of horse herring (6 per pack) in a morning. It's kinda funny too, everyone says "Make sure you club those dogfish before you release them, we don't want them to multiply"....It's all one can do to not completely mutilate them out of frustration.
But, if you get your butt on the 33rd herring, so be it. At this point it's all worth it!