So an update. My rust 1Ks are now two seasons old. They get scuffed. I rub the scuffs in then brush em out, and then my boots just have more character. My regimen for keeping them nice is pretty much to use the LP once per season (two coats). Any time in between that they need a good cleaning I use some Lexol, followed by Reno followed by some major brushing.
Hey, Id really like a few pics of your worn and Obenauf treated Rusts'.
I have the Brown's and I treat mine basically the same way (few pics a few pages back).
I saw someone wearing them in Rust the other day and they looked so good, I think I have to get another pair in that colour.