Thank you gents for the responses. I can't part with ole' big-un. He is my go-to-guy!

I tried him in 25 -30 FOW, and he is scrapping the bottom with 75' of line out. I run him around 25 to probably 40 or so feet of line out, and he usually comes up with a fish. He brings me big, little, and various types of fish.

I don't suppose anyone might know where a fellow (me) could go to locate depth charts for these critters do they?

The smaller one is a digger too. He runs deep, but unless I put him on the bottom I don't know how deep he is running. I usually run them to the bottom and crank up a little. It is an effort that hasn't really impressed me with its results, so I figured I'd try to find something to gauge it by other than dragging it through the mud.