Xstr8guy, I'd classify both of those guys in your links as cubs. Perhpas you misunderstood me when I said cubs are generally younger bears, which I don't think necessarily means they have to be overweight.
If you look at both of those guys in your links, they both have a "cute" factor. Cubs are quite often thought of as bottoms, too.
I don't know how to express it in words, and I don't know that you can really, it's a sort of sense. Al Borland from Tool Time has a "cute" factor, too, but he's definitely a bear.
You, I'd definitely call you a bear, even though you're a bit on the lean side, but you've got a full-beard, body hair, and a bald head, you've also got this gruff, tell-it-like-it-is Texas attitude. But there's something about your look, too, that is cubish. So I'd say you're a bear with cub qualities.
And an important part of this whole discussion should be that these labels are going to vary wildly from one person to another. For a long time I resisted the term "bear" because I really felt (and to a certain degree still do) it is just a more attractive way of saying "fat guy." Others would call me a bear whether I wanted the title or not. Sometimes will swear they're cubs, but the whole planet will say they're a bear.
And I don't think I'm an expert, I'm just one guy with an opinion and three bear websites. :)
Cheers
Dzinerbear