leenew wrote:** it may even benefit from the top being a bit shallower?? **
I'm not sure about that. If you look closely at the end with the bumbs on, you'll see that there's a notch on the underside of the fascia which allows you to get a screwdriver under and lift the cover out of the socket again.
I guess you could make it thinner and lose the notch but then it'd be trickier to remove.
As we're virtually redesigning it though, a chamfered edge wouldn't go amiss...