If you’re asking about an internal spring weight system, the closest matches in this set are the lures that use internal weighting or weight-transfer designs to improve casting and action. Deps Slide Swimmer 175 Glide Bait and Deps Silent Killer Swimbait both fit that idea for bass, with the Slide Swimmer offering a slow-sink glide and the Silent Killer giving a floating glidebait profile. Livingston Lures Rick Clunn Jerkmaster 121C and Livingston Lures Rick Clunn Jerkmaster 121D are also good fits because the 121D specifically mentions an internal weight transfer system, and both are built for reaction bites on bass. Gamakatsu Micro Split Ring Plier is useful if you’re trying to inspect or swap hardware on lures with internal weighting systems.
Switch to a topwater bait like Deps Brachiostik Topwater Walking Bait or Livingston Lures Livingston Spin Master Tournament if fish are feeding on the surface. Switch to a terminal-tackle weight like Clarkspoon Trolling Weight with Snap Swivel - Mutiple Sizes if you meant a trolling sinker rather than a lure’s internal weight system.