Re: JB/Jazz in a PRS Santana Standard Se?
The SE can sound a little thin and lifeless, IMO. You might want to try an A8 mag in the JB before putting it in your SE. The Jazz is an interesting pup...it can sound very trebly in some guitars, and very full and phat in others. You could try it the way it is (with the A5 mag) and see how it sounds. It may be just fine. But I would be inclined to put an A2 mag in it from the get go and see how that sounds first. It should give some warmth to the SE.
For one of my last builds I used some very warm sounding swamp ash for the body, maple neck with rosewood board. I have the stock JB and Jazz in it and they both sound very phat, full, rich, warm, and wonderful with a hint of aggression in the bridge. It's not what I would consider the typical JB/Jazz sound. But to my ears, it is a perfect combo for this guitar.