I probably have three of these, and it is not a frayed gene, it is quite a bit different. No frizzle or fray to them as I see. Immature is the best discription I can give it, that they shed out.
When very young those with it have what I can call for no other reason an 'immature feathering' to some of their feathers, now at ~ six mos or so their feathering has all caught up and the 3 show what I call 'enhanced feathering'. One is a bit tighter feathered, one on the loose side and one right in the middle. The smallest one does seem to have some sexual immaturity at this time, I was going to rehome it to a pet home, but am going to keep it for observation. The largest one, a white SC, is the one I refer to as having tighter feathering, close and slick, he also will be observed. The middle one, is a black breasted red wing with RC, and crest, I am observing it for a probable breeder. All three of these have feathering right down their legs and unto the toes. The smaller one also has a crest. Two also appear to have 'looser feathering' then the larger white one. At this time I think the two loose feathered ones appear to have better feathering for a northern climate. So I am watching them closely to see how they develop and mature. We shall see what will be with them, right now the jury is out, I prefer RC over SC for more winter hardiness, and will see if the feathering also makes them better able to withstand the cold. At this time I see nothing in any of the three that would be a negative to their surviving . The immaturity of the one seems to be something that it is growing out of. Whether delayed maturity would be a survival factor I dont know, but to join the gene pool it has to show me more. I will post more as they develop.