UPDATE:

Day one - Installation no issues, the trick was not to overinflate the outside ring or it would not lay flat. Seven?? I think they are two short. There is a lot of uncovered surface. Two more would be tight, but it would cover more of the surface. Otherwise, the heat gain (if any) would be lost at nighttime. I have left over trimmings from solar blankets, so i formed a Hybrid solar cover: 80% Solar Rings / 20% Solar Cover

1 hour after inflating all seven - Two have lost air on the outside rings. The valve stem "covers" popped out. They are too loose fitting. Sent an email to the company per instructions enclosed within package.

I will let know the outcome, favorable / unfavorable. I will be unbiased and if the company does not honor the warranty, all of you will know.