Thanks Jim.
I wasn't worried about wknd-to-wknd as its' always temporary and it's unlikely I'm parking the car over the same spots every weekend
-- but was considering them for the winter storage I'm planning. On their website they're showing some independent tests that supposedly prove their claims. Didn't have time to read them but will soon.
About the 59PSI... I recall some tires say max 50psi pressure on their sidewalls. Is it advisable to inflate them above their max allowed pressure -- even if just for storage?
Thx.
Z.