I leave my grills on. Just safer in general, not that the grills are particularly stiff. They come off easily if you tug at them (although that's not to say they fall off or anything) with the exception of the covers on the qs series. So if you want to show them off for a while it's no trouble.

[black]-"The further we go and older we grow, the more we know, the less we show."[/black]