
Originally Posted by
dahut
To clarify, as I understand it, the "bolt rig" allows the fish to feel the un-natural resistance of the weight. It then tries to spit out the rig and "bolt" off - thus the name. Doing this causes the fish to get hooked, and the game is afoot.
Carp are somewhat skittish fish and they will shy off from things that they don't recognize. The bolt rig takes advantage of this.