So, take two. After the mess of the first board, I’m going to try this a different way. I started by surface planing the next board just to clean it up, and then marking out the slats with the slat template before resawing it:
So, take two. After the mess of the first board, I’m going to try this a different way. I started by surface planing the next board just to clean it up, and then marking out the slats with the slat template before resawing it: