Strike King Pro-Mdl Silent Series 6XD CB Bait The Strike King Pro-Model Silent Series 6XD is a large deep diver with a unique curved bill that allows the bait to dive deeper & faster than most other deep diving crankbaits. Dives 19 feet and beyond. Systematic flat areas are incorporated to send out larger shock waves--important at the depths to which this bait dives. Medium buoyancy. This is the silent version of the Pro-Model Series 6XD. The color patterns create an appealing and natural look to the fish.