Don't laugh......
Ever have those instances when you have gin clear water, hungry fish, visible fish, etc.......but they just won't touch a bait with a line showing.....especially
BFT??
Try taking a few gallons of milk next time you know the water is gonna be a lake, with water clarity to the bottom.....dump the milk after you get some marks in your slick, a bit at a time, to cloud the water a bit around the slick....it just may work like it has for me.....learned that one a looooong time ago.