Thank you for your interest in the Razer. At the present time it is in the prototype stage on a 20' Case-IH 1020 platform. In 1998 I harvested 45 acres of wheat, and 300 acres of soybeans, with very favorable results (8+ mph., very clean cut, substantially reduced shatter loss in soybeans, and no vibration, chain was instantly stopped several times by rocks, etc. from full speed with no damage). As with any prototype, unforeseen problems occur, but none that were insurmountable. I am currently in the process of improving the unit, and am confident that the expectations of the manufacturers will be met. If the major manufacturers aren't interested, I am considering manufacturing in the future. Thomas E. loftus