Don't think like this. I've been doing the chicken thing for almost 12 years now, but some people thatve been doing it for 5, 3 years and make me look like a fool! It's not just about how long you've been doing this
Your silkie mixes should have one, if not all, or some of these things: 5 toes, black or dark skin, feathered legs, a crest, a beard. I doubt you'll have Sultan mixes
All breeds recognised in your respective Association. For you it's APA. To get a showbird you'll have to go to a breeder that shows, and get a dozen eggs from them. If you're lucky, you might get one or two birds that'll do well in the show. You could also try and get one of the breeder's past...