Not all fish hold at the same depth. This is why our KillZone Fishing System is an essential component to any fisherman’s tackle box. No more tying 3-way rigs. No more cold, shaky hands. No more fumbling in the dark. It’s easier to adjust to the depths you want… if you know what depths you want. If you use a fish finder, then you absolutely MUST use the KillZone Fishing System to keep you in the active fish.