Add rock salt to the tuna, from there you can add scent if you choose. Bloody tuna, Kenai cocktail, etc. Put the little sponge that comes with them in the garbage. Make sure to pack the tuna down good or your bait will blow out fast. If you are plunking put a cork bobber half way down your leader. If your from a boat, you can troll them faster then you think. Good luck.