Re: New (old) guitar day!
Yes, I suspect a lot of them need shimming because of this. I haven't had to shim mine, but can see why it would be necessary; maybe some of them had a slightly deeper cut neck pocket, I don't know. In the end, I don't think they're meant to be decked like a non-recessed OFR, also because the Edge's baseplate isn't flat.
It's been a while since I did any measuring but from memory the back of the trem 'wings' on both of mine is about 2-3mm off the body.
I contemplated getting a 440, but a 410 husk came along at the right price and I couldn't turn it down.