FWIW, that same piece of "interior' cladding is nowhere near as dark on my VX as on Sue's, which doesn't seem to make a whole lot of sense given that it should be fairly hidden on both rigs. Who knows...

I agree that a coating product (GatorBack or whatever Crn used) is the best long-term solution to the problem. On the other hand if your cladding isn't that bad and you're just looking to maintain, TS-1 is probably the best option.