I used his gang saw segments. He's extremely sharp. It is very effective in a handsaw. I would recommend it as a panel saw. This is VERY EXCLUSIVE. It has a BEAUTIFUL NARROW SLOT and works like a dream, hand sawing mahogany and cedar for the top and bottom of the guitar. But my brain is NOT very efficient. I wonder why it's too sharp for me to cut wood. Because I kept cutting my hands just from handling it. It causes puncture wounds IF THE WEIGHT OF THE SAW in a lightweight 700mm gang saw. My schizoid brain can't handle things like that. I SAW DIRECTLY THROUGH GLOVES at the weight of a handsaw. I DO NOT USE MACHINES but if you want the SHARPEST available FOR YOUR POWER SAW. That's probably all. I would highly recommend it but it may not be the best for me.