Boat Type: S2 6.8
A few additions/corrections to the S2 6.8 data listing:
The S2 6.8's were available in standard form, or you could order the optional "Exciter" package, which was a higher trim level, basically. It included a main and 100 jib with an orange and red panel on each, a red and orange hull stripe, and the word "EXCITER" near the stern.
The boat wasn't designed by G&S, but was designed by Arthur Edmunds, N.A., and the S2 Design Group, according to a 1977 S2 price list I have. However, I also have a blueprint of the 6.8 that is signed by Don Wennersten, N.A., who also worked for S2.
They were first produced in 1976, near as I can tell, and were in production until 1979. (I used to own #22, a 1976 model, and I currently own #130, a 1979 model, and I've never seen a '75 or '80 6.8 on the market.) The '79 is a 6.8 Exciter, but the '76 is a standard 6.8.
The ballast type is internal lead. Some boats had an optional cast iron centerboard, and some did not. All had a shoal-draft fixed keel.
Thanks for maintaining a website with so much information!