Tried another on today in some burl from Rockler. The tag on the block neglected to say what KIND of burl, but it looks pretty nice. Had a blowout at the top of the pen but I found the chunk and glued it back. You can see the patch in the picture. It was odd, when I looked at the break there was glue on the tube and on the inside of the blowout so it was surprising that it let go.