Hi Spaghetti,
i met last year in Nizza an authentic and experienced prof tuna/swordfish fisherman from Sicilia. I tasted "le delizie del capo" (pottargo++) and we talked about a possible blue water trip on his boat in the strait of Messine( high season should be June). Do you have more info about this spot? I did about 20 years ago some spearfishing in sicilia and in the Isola Eole, and at that time I was not equiped for pelagics...
http://www.ledeliziedelcapo.it