Anybody have any experience with the Smith Diablo slider sunglasses? I've been wearing a set of Smith Mainline sliders for about 3 years, but I finally have scratched the brown and the gold lenses to the point where they need to be replaced. I could buy new brown and gold lenses for the Mainlines for $40 + shipping, but I saw a couple of deals on a brand new pair of Diablos (with three new sets of lenses) for the same price (including shipping) as just the replacement lenses on the Mainlines ('bout $45.) I wear contacts, and the Mainlines fit me just about right, but I've been considering getting a new pair of glasses anyway. The Diablo is a discontinued model, but you can still buy replacement lenses on Smith's website. There are no reviews of the Diablo in the product review area, so I'm fishing for reviews here, especially from anyone who wears contacts. Thanks!