OK, so here is the report back. We spent the last two days traveling from Chub Cay, Berry Islands to crossing back to US, to Dinner Key,
Florida. It's hotter here, and maybe more humid. Left the
boat or a while today with the port
hull space air conditioned from sleeping quarters thru the aft
head. Humidity was around mid 80's at start. Put a rag in the dorade vent and left the three fans on plus the cabinets with clothes open. Came back in the afternoon and the AC was at the 70 deg set point, the humidity was 62%, and the AC pan was full of
water and had overflowed into the
bilge. So everything working fine, except had to clean out the condensator so it siphoned the pan
water overboard - which it does now. And dry out the bilge! So everything good. THANKS FOR ALL OF THE REPLIES AND EDUCATION.