No moisture probs here......
Drove through some pretty heavy rain the other day too. I remember on the original BHAF thread that the marine versions were discussed and that they didn't have the same filtering ability. Mostly because of the typical clean enviroment that they are used in. I could see on the ocean that if the engine wasn't used for extended periods that the moisture could build up and on start up be a problem.
I drive mine daily so it gets air dried everyday and don't see it being a problem even in high humidity.
Garrett