I have a Star roc that's a couple of years old don't like it much it's to flippy and flies like a coyote ,I have a pro and use it a lot it's not flippy and flies dead straight ,I also carry a gator for over stable shots and a very beat glow roc of turnover shots .
I suggest you also look or handle both the Roc and Roc+. At this time I throw a Star Roc+, because I like the way it feels over the standard Roc. As far as which is better, that's tough to say. Before the Roc+ came along. I liked the Champ Roc in the Rancho mold, but it seems the most popular is the Pro San Marino Roc's. That's if you can find one, but I think they do make them from time to time as CFR discs. But I could be wrong on that, since I'm not an uber Roc junkie lol!