Just found this link, if you want another opinion.

http://corvetteactioncenter.com/tech/care/storage.html

I live in vegas so this does not apply to me, however it is a good solid piece of writing.

I agree - this was very helpful - particularly the last page which really summed up a few of the most important questions!

Thanks!

Some really good points...however, I feel you put extra stress on the frame/body if the car is put on jack stands for an extended period of time. I prefer to just leave it on the wheels. Maybe over-inflating the tires is a good trick. Haven't thought of that.
Thanks Dave.

As the article said, seems like these days the new tires don't succumb to the flat spot problems - at least the ones I have don't. I usually put my 76 away from Thanksgiving until mid-April. After 5 months of not moving I never experienced flat spotting. Didn't even do the "over inflate" trick. The car is parked indoors and covered, but that's about it.