Are you running a 12" or 31" X-Carve? Are you running the stock motor/spindle or did you go with one of the router mounts? And do you think you could try out THIS type of test since yours is up and running? I’m on the verge of placing my order, but won’t be doing so until I’ve seen evidence of the x-carve’s precision. There’s a claimed bounty out for doing just that HERE.