So after a bit of trial and error, these are about right.
http://i964.photobucket.com/albums/a...psgqn7ysiw.jpg
http://i964.photobucket.com/albums/a...psrt3khbmw.jpg
Nice firm fit on feet holds them in place. I gave up on the o ring idea, it didn't really do anything that a tight fit wouldn't...so there it is, feel free to copy it if you wish.
Kim
