lee, That is what I find so interesting about JD not pursuing the Bi-Rotor. Each part that a machine has required tooling. The design and manufacturing of the tooling is where a serious chunk of the dollars can go in a hurry. I had a chance to see the XBR2 once, and the design of the machine was so simple. The number of parts were significantly less than the machines of the day, especially the 20 series Deeres. I also had a chance to also go through the Deere plant at the time of 20 series manufacturing and the tooling for them was simply immense. I have always wondered if I was just missing something on this one or what. Somewhere in that corporate decision making ladder at JD the decision to "backburner" (possibly kill) the Bi-Rotor was a really bad one. Chuck