I rather doubt that many here have had opportunity or inclination to remove the neck from their new pro series and replace it with last year's model. So you are likely the "canary in the coal mine" for this test, at least on this thread.
I have six USA and MIM Precisions from different decades and a fretless MIM Fender jazz neck, and I swap them all regularly. None of the combinations results in a sloppy pocket.
I have not read anyrhing suggesting neck pockets have changed, and people are reporting successful pickguard swaps, so I predict a perfect fit.
As for your question about Fender's proffered technical articles: Hahahahaha