GeorgeWest- well, I did have a mistake with the Domino. I know I need to register the base on the wood surface, but ended up registering off my table for several as I had to clamp in place to hold the pieces. I was inconsistent in whether I had the piece off the edge or not. So had to go back and "enlarge" the cut so everything would be level. Frustrating as I know how important that is. Still was very helpful with all the smaller pieces.