Cranks were my go-to baits years ago, but after I discovered flippin sticks and soft plastics, cranks started taking a back seat more often than not. Here's an idea I had years ago but never implemented. Start with an appropriate size (diameter) short piece of pipe or a shell casing. Heat one end of it and press it into the backside of the lip, creating a very shallow round groove. Imagining that the circle is a clock face, scratch a straight line from the center of the circle to the outside. For example, if your bait is supposed to run at 8 feet, scratch in your "hour hand" at the 8 position. A frame of reference is needed to determine where "12 o'clock" is, but I always figured that if I held the baits the same way every time, that would work just fine. In other words, if I held the body of the bait in my left hand with the lip sticking out past my thumb, 12 would be at the farthest point of the circle and 6 at the closest. Did I just lose everybody?