I saw a picture of the young Monnett. Looked to be about 120 pounds. (not so light now but still short) The history has been to make a single seat then a similar two seat. But many owners can't get the two seat to perform as they want. One guy at Oshkosh with a Sonerai II told me he will never take a passenger. A small two seat trainer can work with a 120 pound instructor. It isn't fair to the 260 pound instructors that want to fly/teach in small airplanes. My mother in law told me life isn't fair.