My original screen could easily hold salt, it was probably 50-50 pinholes and mass. A cockroach could not get by it.
I run a little mud flap off the back of the front fender, between it and a center down tube, the cooling fins don't catch a lot of salt. I'm thinking that with the advanced position of the fairing and intake,(maybe 6" in front of the cylinder) it will miss most of the spray arc. Raising the intake and or splitting it to the sides would help it miss the spray as well. Thanks for bringing up the salt spray issue, I wasn't thinking about it till now.
Tom, thanks for the link to the shroud discussion.