It's amazing how a build can be going so well and then you get to sanding and it just seems like it's taking forever. I sanded out one side up to 120grit with my RO sander, I did a little work with a sanding board but got tired of that. I was going to call it a night but I thought I'd wet it with H2O to get an idea what it'll look like after it's epoxied. Here are the pictures, the flat sawn sides have some crazy grain which I'm not sure I love but I think I'm getting used to it. BTW not a big fan of flat sawn cedar, it really likes to splinter and the rays in the grain are much harder than than the rest of the wood so the sanding is uneven.
Jim, sorry I didn't answer your question about Aspen earlier I just saw it! No never used Aspen, I found some clear cedar at Lowes which was pretty white for the diamonds.