the newest Tool Crib catalog was in my mailbox when i got home tonite. thumbing through it i came across a most interesting product that i have not ever seen before. on page 39 "bench dog tools" has an item called the "pro master cast iron table extension". i know router table extensions have been covered here in the past but i do not ever remember this product being mentioned, nor do i recall seeing it in any previous catalogs. anyone familiar with it?