It's actually pretty simple if you think about it... You have 50' of line drag behind the slide diver pulling the back of it down flatter in the back. At the same time that changes the dig or bite of the front, in effect lifting it.. Kind of like stepping on a shovel with your foot while it's laying on the ground. When you do that the handle will point up.. Thus the diver points up when weight is applied to the back of it. ... To really prove the point of adding pull and angle, hook a deep crank bait to the back at any length from a diver or dipsey and watch it become a surf board on the surface... Now we can all have beer!