[bcrdukes]

Most modern tires will not flat spot, or at least none that I personally know of. I could be wrong.

Just be mindful of the tire make/model and type/designated use. Despite my original post above, I find that it is excessive to use jack stands. I only did that when I had my 78 Alfa Romeo Spider and it had older tires that was known to flat spot. I didn't do that for my MR2s or my other cars, but then again, I drove the M3 and 996 year round, and all cars were fine. Some people take the wheels off altogether and put the car on jack stands. I don't think there is a right, wrong, or "best" way to do it. Best to use your judgement. Only you know where your car is being stored.