If I'm not mistaken, your warranty will be void if you do the painting yourself. Trek prefers to have their bikes sent back to them, so they can do the painting in their factory.
Sandblasting, however, I'm not sure about. A lot of places that paint bikes do bead-blasting, which is less abbrasive to the metal.
And for the paint color, that is entirely your choice and a matter of personal opinion.
Sandblasting, however, I'm not sure about. A lot of places that paint bikes do bead-blasting, which is less abbrasive to the metal.
And for the paint color, that is entirely your choice and a matter of personal opinion.