Q: What's the difference between the "Zone-R" and the "Original" Nuckle Ball Jig?
A: The Basic design concept is the same for both jigs.
The difference between the two jigs:
The "Zone-R" Nuckle Ball Jig has flat sides like an aspirin type jighead, more hydrodynamic, gets down deep fast, great for aggressive vertical jigging rivers, a great bottom dragging jig, excellent for 3-way rigging with a jig (Dubuque rig).
The "Zone-R" wasn't design for casting, the sizes start out heavier 3/8 to 3/4 oz.
The "Original" Nuckle Ball Jig is a great all around jig, you really can't fish it wrong. By design, the "Original" Nuckle Ball Jig is larger than a typical round-head jig the same weight, it will stay in the fish zone longer, it's aggressive stand-up head is less likely to hang-up in rocks, excellent for bottom dragging, but still a great vertical jig. The "Original" Nuckle Ball Jig sizes start out at 1/16 to 3/8 oz.