Lou I know what you are describing and have seen that also. Sometimes you can fish the leading (clear) edge of one of the lines and catch a lot of LMB. They get in the milky water right at the edge and hide and snatch fish from the clear water that can't see them as well.

Today I took a couple of pics of what I described above. I sent them to the office (with my notes)where I can better edit them (different program) to show the effects. I will post them tomorrow.