Glad your bits are intact Kevin!!!I was wondering about the shrinkage on the edges too and thought that might be a problem, but it didn't seem to be for Ben Seymour so perhaps yours will work out there too.
If you can find a woodworking store you can find the strips you need for fill....Moo might know more about where because I don't know what's which and who's when over there. If you were here, it'd be a different story.
Spaw