Today I think I just might have found the answer to my own question. You see it all started when my wife bought these brush holder/pincle holders off ebay made of bone. Very nice I thought so she suggested I make one. I had a chunck of black cherry with a bit of burll I got from Chris at the picnic. So I decided to see what I could do and here it is. As I got mear the end with the wall thicknedd it started to move with the pressure of the too. Now I think I know "How Thin Is To Thin". Thanks For looking. Have a Nice Day.