The Berkley Dredger crankbaits have a good narrow profile that seems to help with their swim pattern. I caught fish on a 15-foot ledge really well earlier this year with the 17.5. And caught fish on a 20-foot ledge with the 20.5. Both were on 10-pound Seaguar InvizX fluorocarbon. The baits get down to their said depths on a very long cast with the lighter line. And they are compact compared to deep diving bass fishing crankbaits of equal depths.