Sounds like you already know the answer then.
If i had the answer (with any certainty) I wouldnt be asking, it is a logical contradiction.
"I have 15 years with the 951" I am not being a rectum, but stating I am not new to these engines.
"and not once have I found moisture on the RAVEs" another fact not being a rectum
"I have checked them MANY times" Over the years and with this current situation.
"and only find it after riding it." Literal statement. I have only ridden it a minute or two at a time and only to see if the moisture is showing up. My logic is if it does this in 1 minute, it will do about 20 times that in 20 minutes of riding. I consider that to be a problem and I dont want to find out the hard way I have an issue.
The facts are:
I have an engine with moisture in it
that passed a leak down test with a
head that has a ridge in it (OEM head gasket)
with a new OEM exhaust pipe gasket
My issue is nothing stands out! I dont want to go ripping and shredding for nothing.
I guess I will replace the exhaust pipe head gasket for gits and shiggles. If that doesnt do it, I will send the head to a machine shop and have it fixed.