I ordered some new knives from Scott at Holbren for my 8" jointer. I received them today and when I opened the package I realized I had only ordered three instead of the four that I needed. Well, that's okay, I thought I'll just put these three on and then install the fourth when it gets here. I get the knives installed, turn the jointer on and it about jumped out of the shop. IDIOT! I didn't even think about the head not being balanced before I turned the thing on but I'm assuming that's what through the thing into orbit. Guess I'll be waiting for that last knife to show up