I am using bunker chum in metal cans from mastic bait and tackle.The bait I am using is mackeral that I caught and cured in kosher salt, like a book said to do . I have also used fresh bluefish fillets when we catch them . I usually put on a whole mac, but have tried other ways. We did see a giant shark breach about 15 ft from the boat but never stopped or looked back [just keep swimming away]I've also started an iv drip bag this year with bunker oil. I Thought I was doing everything right according to all the research I did.