While I was waiting for the poplar bowls to cure that were my first coring project, I bought some cured honey locust on ebay and got busy. It only took me about three hours to accomplish what Bill Grumbine could have done in less than one. The bowls measure - large=8w x 2 3/4t, medium=5 7/8w x 1 3/4t, and small= 4 1/8w x 1 1/8t. I'm still caught in that infamous learning curve (like trying to control those entry catches), but more practice is all it takes. RIGHT Tell me what you think about the bowls and/or any advise on using the McNaughton system........Tony