I've got the beginings of a question, but it requires a bit of research to shore it up.
In White Night, Harry says something to the effect that no 2 wizards will enter the Never Never at the exact same point, because no two Wizards share the same set of emotions & thoughts (or something along those lines).
But from what we've seen in the series, this doesn't seem to work.
Everyone on the White Council uses the same entry/exit point for Chicago, or else what was the point in having Vince watch a single location?
Also, Maggie's gem. Seems to me, that Harry is using all the same entry & exits points she used to use.
And in Ghost Story, Harry told Molly that an opening close to Corpsetaker's HQ, would get him in the same NN general area. Which again, makes me not fully understand what Harry was on about in White Night.
Then I'd ask if Jim could explain this all.
The problem here, is that my views are a bit long winded & don't come to the point. Plus, my memory might be faulty & I'm missing some points.
I intend to do the research into this, but if anyone wants to take this question & do the footwork, I'm fine with this.
Kevin