Fishing Tackle Diver Board also named Fishing Tackle Diver Board Fishing Tackle Diver Board has following characteristics: Polyurethane foaming process productionï¼? shapedinoneshot How to use a diver board K-Type is most suitable for migratory fish and Bluefin Tuna in the upper and the middle stratum. Sized from 150 to 300 mm. The Diving Board is designed for trolling in upper and middle depths. The board dives with wiggling and wobbling actions, it gives the lure lifelike action. The board is overturned and goes up when a fish bites the lure. Adjustment of the Diving Board If the Diving Board does not dive properly when your boat moves up to trolling speed... re-adjust the connecting line as illustrated. To adjust for stability and direction, do the following. If the board veers or shimmies to the left... trim the left back corner until corrected or move the rudder to the right. Reverse to correct for right side veer.