Got the new blade for my plow, bolted it on, went to the field to plow, dropped down the blade to plow, noticed after about a couple of minutes, didn't seem to be plowing, got off and checked it, blade plit right down the middle. Didn't seem to hit anything hard; it just wasn't there any longer. I walked back the row I had just started, and there it was, lying in the dirt, broken. I emailed Tarter but never got a response..