I’m not entirely dumb on many things (and yet really dumb on some things), so this counts as the later..... I bought a 1989 Blue Fin Spectrum because I really like the simplistic lines, all aluminum hull, and this had the galvanized bunk trailer. It only has two bucket seats in it and I may swap them out for the original back-to-back style ones. But it’s main purpose is to be a diving platform and I like the space (and it’s only 17’). But here’s the question- if a kid wants to ski or tube behind this -which it’s perfectly capable of doing- where do I hook up a tow line? My other Forester Diva has a pole/mast that makes it a no-brainer. Do I clip one on to the ring on the stern? (see pic) Or where?