Hi, I just finished this bowl finally. It's hickory. I turned it green back in April of last year. Put in a trash can full of saw dust and stored in in our greenhouse. Started back in on it in Nov. Had cracks in it ( I hadn't sealed the cross grain. Lesson learned ). In the possess of turning it came out of the chuck several times amongst other problems. Filled the cracks with epoxy and CA glue and proceeded.Got it hollowed out and was starting to clean it up with one of my scrapers when I had a catch. Shattered ( split) the wood handle on the scraper not enough support. I have make another tool rest to reach down into the bowls for more support. Another lesson learned. In the possess of sanding it developed cracks in the side walls. They are very thin. Thank God for CA glue. Lessons learned. Hickory is very hard when dry. Seal the cross grain and use more support down inside. Jim