Crankbaits are designed to be running and digging into the bottom. This action is designed to trigger a strike. Squarebills are designed with a wide wobble, run shallower, and are designed to entice suspended fish. It is true that cover enhances their production, but don’t think they cannot catch suspended bass in deeper water. I fished a tournament this last weekend and four of my keepers came on a Squarebill in 20 feet of water.