Lynn, your comments and observations are spot-on. Historical information on the -2 is hard to come by. I think when Downer entered the picture they came out of the gate with a lot more focus on marketing and documentation. I keep looking for anything and everything on the -2 as well as the -3. As for your observation on the use of "Fiberglass" I think I can shed some light on this... back in the '50s they often referred to Dacron (a DuPont trademark) as "Fiberglass" even though this is not technically correct and certainly not what we think of today as fiberglass. Dacron, Ceconite, Poly-fiber are all polyester fabrics - there is really very little difference in the actual fabric compositions. What I am curious about is did the change over from cotton to polyester happen with the first -3 produced, or were some of the -3s still covered with cotton... or maybe some -2s covered with polyester?