Edge Tremolo/Floyd Rose nut question
I've had an RG Prestige with the Edge Tremolo for a while now. I know the locking nut is basically the same as the Floyd Rose nut. But what I'm wondering is this:
Why does the nut not have to be adjusted when changing to heavier gauge strings? With a regular nut, you need to do some filing to make sure the action at the nut is right. But with a locking nut, why does this not need to be done? Is it just that triangle-type shape that allows any gauge string to sit in their properly?