For several years I've been an advocate of the Airflo 40+ lines. A big part of that has been the manageability of their running lines. This past year I set up a Tuna reel with the Monic running line. It's very nice handling also, and the 70# core could be a shooting-head saver in some locales (lobster pots, mooring fields, boulder patches).
We live in complex times, what with fishing,sailing and skiing seasons overlapping.