This is really interesting....I think from reading this that Twinkle and Wicket have soft or modified silk coats. They are definitely not silk, but they do have a sheen to them (satiny looking rather than silk, if that makes sense)....they don't matt, but they are very thick and Twinkle's is slightly wavey. The eye-shine theory doesn't work with them either because in some they shine green and in some there's an orange tinge

xxx