Originally Posted by
eyeball1
I get a couple of cat 1-4 SPG free night certificates through my Amex cards every year. Most of the SPG properties I stay at are cat 5+, however. Has anyone had any luck using points or cash to somehow "pay the difference" on these certs to be used at higher category properties?
Nice try! ^ I like your thinking. Unfortunately I don't think that is going to be possible.