Ran north to the bluefin grounds in zero visibility. Fished by radar for the first hour until my nerves were totally shot. Move a couple miles offshore to a little hill and as soon as we came up the edge my way back gets hit. Whatever we have on is not fighting like a tuna. About 20 ft from the boat the fish pops to the surface and I’m  looking at a 70-80 lb wahoo. The bugger shakes his head and that’s all it takes for the 90 lb leader to get cut by that mouthful of razors. Work that area with no other bites