Took off in the fog from SD bay around 7am. Was told to gear for Halibut and calicos in the bay, but the boat owner decided to head out to the south 9 to scout for BFT. Dodged some large navy ships, and submarines, had to wait out the fog at the tip for a while, my buddy scored a nice Sculpin and a Sandy, both released. We got out to the S. 9 pretty fast, it was nice and flat, the fog lifted. Saw a large school of porps, pretty big area of them jumping and hanging around the boat. Headed out west for a little bit, saw some birds and boils, splashes, rolled over and saw they were Tuna busting small bait! Probably 60-100 lb fish, blowing up all over the place! Birds going off, tuna in all directions. Could clearly see them, not porps! I had no real tuna tackle, I did have a progear 541with a seeker 655 rod, 80/40 which never got picked up. (Bait, jigs, no big flatfalls along)Threw a 25# TLD20 with a squish 80g from the bow into a boil and got picked up, screamed line off till less than half remained, could not slow it down, and got cut off, must have gulped it down. My buddy got picked up twice on slow troll dinos, 1 hook straightened, and 1 knot failed. (He uses ancient gear, kind of new to the game, shopping for real setup tomorrow!) I got solid bumped on a different squish later. Did not stick. Could not believe the volume of fish everywhere! Called it out on the radio, heard a guy saying it was "WFO 10 miles from the point", so he must have been close too. Saw only 1 other boat, a Triumph trying to get in on them, but saw no love. Less and less fish/birds, saw porps, and Tuna blowing up together, later in the day. Slowed down, quieter and quieter till we bailed. Wow, I will never leave home without my 2 speed 655H! Did not want to be pulling on calicos with it, and save the wear and tear. I took some videos but the fish were too far off, one sorta worked, let's see if I can attach it. Basically BFT being BFT. But, a few biters in there, nice grade! The reels were screaming!!! Brought a swiss army knife to a gun fight! Go out and get some!! Good Luck!