How many birds were entered? Was your fair APA sanctioned? We have a fair every year with maybe 40 birds that get entered...I've never taken anything of mine down there because I've seen sickly birds allowed to stay the entire weekend and kids (and some adults) like to harass & poke at the chickens--plus, there is no security and they make you keep them there all weekend.
Anyway--my when my SIL was little, she took a Light Brahma from McMurray to the Okanogan Fair and it won "champion" of the fair. Looking at old photos of it, it was a decent bird (by hatchery standards) but if it was a "real" show, it might have gotten DQ'd or completely overlooked and not placed at all.
As far as breeders--there are few a with SQ SLW.
It's true that when buying an older bird, you'll know what you're getting as far as type & temperament....BUT just make sure it is from an NPIP certified breeder. Older birds can carry diseases (I know hatching eggs can too but you're less likely to get something from an egg than you are an adult bird)....
Just remember that even though you'd be breeding two SQ birds together--there is a lot more to breeding than that. I wish it were THAT easy.
Unfortunately for every few hundred chicks you hatch, you MIGHT end up lucky enough with one or two that are truly show-quality.
As far as fair-champions go--this little cockerel won "Grand Champion" of the fair two years ago. My MIL won him through the 4-H auction and then gave him to me.
She meant well but man--he was nasty and not even a good looking bird, IMO. LOL I was able to sell him but it just goes to show what some judges think sometimes...there was a VERY nice black Orp there (from my lines & when I used to breed them that didn't even place!)
As it turned out, after doing more "research" this cockerel was from IDEAL Hatchery.