Attached Link: http://www.nevercenter.com/videos/index.php?vidclip=split_loop.mov&artist=Sunit%20Parekh

"I don't know Silo at all, but is split-loop like Fillet but leaves the original edge in place?" I give you the direct link (attached) to their Quicktime movie (it's small), it will explain it better than any word I could use.