oh aha, well i am no expert but if you can't see any wattles yet then i would say there is still hope. I've seen a few threads where someone s chick had a pinky comb like yours early and was a pullet. And people say that pullets can act like roos. After reading your earlier post i must say that i don't know anything about sexing a chick by its feathers, either colour or pattern. Some Roos develop slow signs, some pullets mature sooner. But, until you see some more obvious signs i would stay optimistic!