383 shakers don't use the feet, they actually use a support rod. It is made out of "hex" rod and threaded on both ends... on the block end it goes into the middle hole on the valley pan hold-down, and up on the shaker baseplate there is a raised area with a hole, and uses a wingnut. I think I posted a picture a long time ago but I am sure with only one year of history it is gone now.

If nobody puts up a picture, I will try and find one.

Darren