Yes, Good for maintaining depth especially if using minnows. Mostly for casting from a bank though with a jig suspended. I do not use them for deeper than 12'. If they're deeper than that, I'll sit over them and just jig for them. My friend "corks" for Crappie year round, every trip along with over the side jigging. He uses a spring bobber though and is very good at 12' and under casting that dude out there. Most of his fish come from this method.