Ya sissies, No one can see that dirt and slime while it's flying anyway. Unless your that guy that unloads your trailer never, fuels a single plane and packs up at the end of the day with his static displays. Just play'n but my point is I just wipe em down and cleean them well when I have to do any maintenance. Ya, I guess I'm a little lazy about the show 'n shine side of the hobby.