Growl notifications pile up
If you change tracks at a pace faster than the default stay-on-screen time that Cog uses for its Growl notifications, the notifications pile up. If the Growl display style is a one-at-a-time one (e.g. Music Video), this can be confusing while the display is slowly catching up to the current player state.
Is it possible for Cog to tell Growl to expire the previous song-playing notification when it sends a new one?