The J hook version of the Ghost rig, for anglers who want to set the hook rather than let it turn on its own.
A J hook buys you an immediate, aggressive hookset and better conversion on short strikes and fast-moving fish — the trade-off being a higher chance of gut hooking, so it is the wrong choice if you plan to release everything.
The fluorocarbon leader does the same job it does on every Ghost rig: it disappears in clear water and resists abrasion when a fish takes you into structure.
