My tarp shelter.

I do not like that the tarp had major condensation on the inside even in such an open configuration. Perhaps a steeper pitch is needed so the condensation runs off. This tarp does not appear to be available for sale any more.
Aloha - mauka or makai? Your shelter might have trapped alot of onshore flow, like an open sail, if you faced the opening towards water where the onshore flow comes from, even if its miles away. We get alot of that in the Cascades too, I like the sunrise through the door of my tent, which keeps alot of condensation out of it.
Yer living the dream, man...