I really don't know what breed Ugs is. But if memory serves, sphynx's are mutations of domestic cats. So really a sphynx is just a hairless siamese/oriental/perisan/american/whatever. If you breed a sphynx to a cat with a normal coat, you'd get just what you would expect. The litter would vary slightly but generally the kittens would have half as much hair. Looking very similar to the devon rex. I think some sphynx breeders actually breed them like that on purpose to add more of the show qualities to their litters. Later, they might breed it back to a sphynx, and breed those to sphynx's. After a couple of generations they get the desired characteristics. For example, a seal point sphynx like Ariston (Angelsphynx) has blue eyes with a black nose, ears and paws. Those are more highly prized than say my buddy ButterBall who has a brown light colored nose and ears with greenish grey eyes. Then again, beauty is in the eye of the beholder and that is why you'll never see me at a cat show.
I'm a relatively new sphynx owner so I may be wrong in my post but I seem to remember reading that somewhere. Maybe some more knowledgeable people can correct me if I'm wrong.