You are both just a little off as I designed and built this one myself. I spent a year designing it and two weeks building it, about 23 years ago. Use it quit a bit. The fork put about 5 years of wear on the ¼” thick AR plate frails, of which there are 36 of and I had just turned around for the first time last year. I once accidently put in a 5/8 X 1 ½ A307 bolt and after a few moments of rattling around it broke threw the screen and had became blued.