Dunno about the Vison Micro, but my Glasair seems to handle moisture OK.  Only thing is I have a wood prop, so I don't mind sticking it in the puffy stuff, but I'm definitely keeping it out of the rain.  Man does that thing get gnarled up!  I have been fortunate enough not to have the paint pitting problems though.\

Steve
Glasair 1FT 343ND