I have gradually acquired enough Owen 12" linking rings to do my 11 ring routine. I just need an oversize (Hilliard). Ive tried lots of routes and even got close to having one made. Alan Zagorsky reckons he sold around 40 over past 20 years, so there are definitely some out there. Anybody sitting on one (you may not even have noticed). I'm happy to pay a good price.