A diving bill does more than change the shape
A lipped crankbait uses water pressure against its bill to dive and wobble. Body shape, bill design, line, retrieve speed, and casting distance all affect the path. The depth printed on a package is a useful starting point, not a guarantee that every cast reaches that number.
Watch a lure beside the bank before fishing it. Notice how quickly it rises when you stop and whether it tracks straight. That short check makes it easier to picture what is happening at the far end of a cast.
Four styles worth recognizing
Squarebills are often used for shallow cover and controlled contact with wood or rock. Rounded, longer bills appear on many deeper-diving models. Flat-sided bodies commonly have a tighter wobble; they still need a suitable running depth. Lipless crankbaits have no diving bill and usually sink, so countdown and retrieve speed become especially important.
Choose between those jobs before choosing a paint pattern. A deep diver that continually buries in shallow muck is a poor match, even if its color looks exactly like the local forage.
Contact should be deliberate
Occasional contact with a clean, hard bottom can change a crankbait’s rhythm. Ease off when it starts digging or lodging rather than forcing it through. A floating lure may back away when tension is relaxed; a sinking lipless bait behaves differently.
Treble hooks grab vegetation, clothing, and landing nets readily. Use a lure that stays above thick weeds or fish an outside edge. Check hook points and the first few feet of line after repeated contact.
Where jerkbaits fit
A hard minnow-shaped jerkbait belongs in the same broad hard-bait conversation, but its useful rhythm is often twitch, pause, and recover slack. Some float, some suspend, and some sink. Test the actual lure rather than assuming the word “jerkbait” tells you what it does at rest.