I've glassed the bottom of the board. I sanded and scraped the filler coat for about 5 hours last night and this morning. The temperature barely came up to epoxy coating temps but I preheated the resin. The coat flowed beautifully. I let it sit a couple of hours then trimmed it back where I'd wrapped the glass around onto the top. The board is now inside my house so it can cure overnight. A little early celebration is due with some sushi!