Thank guys. I used 1/8' baltic birch ply because i didn't have anything thinner. The front and back do look the same.Sometimes the clay is a little loose after sanding so I add a little clear glue after I finish it. can't see it so it should be fine.I used a different brand this time and it was a lot softer.Then only drawback is you bake it at 230 for a half hour instead of 300 for ten minutes. I will find the brand and post it later tomorrow.Thanks again. Bobby