I had this Bradford Pear bowl roughed out and coated with AnchorSeal when I clumsily knocked it off a table. It hit the floor and broke! Upsetting but not really a big loss. I am posting in the hope that it might help someone, this is what I consider a good thickness for a bowl rough-out (about 10% of diameter with the bottom slightly thinner). Thicker rough-outs are more likely to crack and if much thinner they may warp too much for finish turning. Some woods (like elm) are pretty forgiving but some others (like oak) have a narrow window between too thick and too thin. Careful drying (by your chosen method) is still necessary of course.