Glad to hear another Floridian on the site! With regards to color selection, rc57 hit the nail on the head, get some test panels. Especially with HOK, a little difference in the mix can go a long way.

I'm trying to do the same thing right now and everyone I ask says to try test panels with the same primer/sealer/base as you expect to use. And be sure to make your color decision outdoors!

My photo shows my project in HOK KP-2CFA. It's not easy being green!