Paul told me he made it for me!
(Just kidding!)
LOL...
The neck is great, the best of any PRS neck carve ever, or of any brand ever, for me.
The scale length is a key part of it for me. It feels perfect for me, like the story of Goldilocks and the Three Bears, this one is JUST RIGHT!
I think it is a key ingredient of the tone as well.
I think those two things are the key two things in my mind, but beyond that it is the sum of the parts of all the other magically awesome things, the frets, the three way in the upper bout, I am sure the electronics (caps, resistors, etc.) have a subtle influence.
The pickups are amazing, too! But other PRS pickups work awesome in there too.
Home runs, both this Doublecut, and the Singlecut!!