69 Elim,
thanks for the info. I think you're right about the adds. I think the bubble came out in late 72 or sometime in 73. The reason I say this is because Roger Weiman, Rogers Custom Boats, by 1973 had already popped the bubble off a sanger and grafted it to his 18. Beautiful boats, both the Sangers and the Rogers. Worked for roger for 5-6 years.
I drive the 99 once a year going to the big Turlock swapmeet in Feb. Next time I'll have to pay more attention and look for the Sanger shop. I'd like to see that woodie.