What I was really wondering was the exact dealer and product you purchased, as I know that different rings are made differently.......so, as I know that yours has worked out well with the glue method, I was hoping to copy your results exactly.
Here you go! They have more right now. It takes 2 weeks, due to the fact that they are in Hong Kong. Enjoy!
http://cgi.ebay.com/52mm-to-42mm-St...emQQptZLH_DefaultDomain_0?hash=item3ca40f732d