How do folks figure their lure depths, when not using a bottom bouncing rig? The other day I read that Skip runs a tandem Cripple Alewife 13/0 with a six ounce chute 320 back. How deep does anyone think that is? (Skip should probably wait for the rest of us.) I'm guessing almost forty feet at 2.5 knots. I want to try this combination for the excitement of running a spoon in a tandem, but I have no real idea where it will be.