I have been playing with another application, and have had boils, even hooked one once but it got off.
I stand at the stern, and while the captain orders a chumline on the porpoise/birdschool type fishing of Cowtown or the island buffer zone, let it back, and when I see boils, raise the rod and wind to make it skip.
Check with captain and crew to see if it's ok to do, but so far they have allowed me to do this.
But yes, mostly a helium balloon application.