We seem the same age- I played disc golf during college years (94-97) and then forgot about it for about 10 years and now I'm into more than I was back then. Haven't gotten back into hacky sack yet.... Anyway, Opto Fuse is such a great disc. It can fly straight with a bit of fade or hold any anny line you put it on with no fade. (Thrown flat, it gently, almosts imperceptibly, coasts to the right). In a headwind, my Z Buzzz behaves similar enough that I can switch to that for the same shots.
Rocs are a totally different animal. They work great for touch hyzers and S-curves. Rocs are more versatile but, I'd say less predictable, but another player would prefer two Rocs of different stages of wear where I use a Buzzz/Fuse combo.
Disc Golf (n): A game in which a round plastic object is thrown into trees until it is beat in to resemble its preferred flight characteristics, at which point it is thrown into a lake.