There are also jack mackerel in addition to these horse mackerel, and some boats are getting true albacore way the heck out there (50 miles). We'd run into these macs every time out at Swiftsure Bank.
Somewhere I have a video of the krill being compressed by a wave of macs, then when the krill get pushed into a big wave the coho come jumping over the backs of the macs like extra point blockers on the gridiron gulping mouthfuls of krill. A well placed deceiver gets a hard grab from these fish with consistency, just have to strip it away from the macs.
I sure miss fishing in the potpurri out there!