its the same old sham-wow sales pitch, tuna balls, tuna wrap, hot lava egg curing powder, flying lure... grandads recipe... **** all boild down to the same ole thing..... presentation, location, and fish in the water. ANYTHING with oil or juice in it is gonna catch a fish if fished right... but tuna is not gonna pull a nook 15 ft up into the water column.... herring works the same as anything with a flasher, shrimptails on jigs spinners painted with 3 charteuse dots in an ancient aztec pattern... blah blah blah... put the **** in the fishes face correctly and you will catch them with the wrapper your yarn came out of.... learn how to fish.... it doesn't matter WHAT you fish with... tuna is fine bait... just like freezer burnt sardines.