So I conducted about a 7 hour start trails test - my first ever, using Velvia 50 and got the image below with no compensation or filtering. I learned that I should know if the moon will appear in the scene sometime during the exposure. I think the yellow pine trees - normally green, was due to light from around my backyard.
Anyway, plenty more trial and error to have fun with. I like the that there are uncharted territories to explore . . .