So the problem with those Silver C's are the solid bottom tray. Since Weber used cheap metal on that piece it is prone to rust. Also, those 2 horizontal bars on the tray are part of the tray, they aren't actually connected to the vertical bars so once that tray goes then the support goes as well. It doesn't mean that it won't stand because it still will but I'm not sure what kind of long term effect will happen if there isn't that kind of support.