[modelman]

Yes steve, This is the hard part. Varnish will not work but I have to finish it really smooth so it will release. I wanted to use glass filled delrin for the plug because it machines easy and you can mold directly from it but a 3-1/2" pc. cost over $200 with shipping and I only need a 1-1/4" slice and I probably would never use the rest of it so I went with the mdf but finishing it will take a while.