The environment behind the boat is turbulent, and the fact that water is 780 times denser than air further complicates things, making it difficult to get the lures to do what you want them to. Think of it this way: Trolling a rigged lure at 7 mph times 780 equals 5,460 mph. The fastest jet in the world, the X-15, reaches speeds of only 4,520 mph. Trolling lures with some control seems to be a daunting task when you factor in a bit of turbulence, wind chop and swell. So rather than fight the environment, we can work with what the lure and its components naturally want to do.