Last fall I finally took mine in to have the leaky gasket fixed. They replaced both valve covers, and used new gaskets for both, and had gaskets for the smaller rocker covers. All work was done under warranty and didn't cost me a dime. No RTV was used anywhere.

As a sidenote......they went and powerwashed my engine compartment. It looked much nicer after they did that. It would have been nice if the guy who did it didn't stick his cigarette butt in the hood latch mechanism though.