Yup, we need to talk. Still think there's a reasonable chance I connected with one in 2015. Probably just a toad albacore but I landed 5 that day that were pushing 30. None of those took even half the line that whatever it was I broke off. I just wrote it off as an abnormal albie until I found out somebody landed at 50-ish pound BF very close to us the same day. Not to mention other reported ass-handings, and weird stuff like being surrounded by hundreds of dolphin on the way out and back in.
I've been over this an unhealthy number of times but think there's 2 ways to do it with fly gear - even if not "proper" fly fishing.
Obviously lucking onto busting fish would be the dream scenario. Barring that: (1) Trolling something bigger waaaaaaay back. Or (2), soaking a fly deep (relatively speaking) and far from the boat on the drift (that's what happened to me in 2015). With option 2, I suspect chunking brined IQF or other chum to create a deep chum trail would be a good idea. Sharks would obviously be an issue, but this wouldn't be a typical albacore bait stop where fish would be fought to the boat. Any BFT of size on fly gear would be a chase.
Anyway, if nothing else this is fun stuff to think about over the next 9 months or so