I am looking in to a coal-fired concept and have a question regarding the best oven. I have narrowed my options to the Earthstone and the Woodstone versions, but there is a significant price difference between the two ($15,000). Although the Woodstone does seem to have a few more bells and whistles (additional gas burner for example), I was wondering if anybody has used these in practice, and if there seems to be a preference of one over the other? Thank you.