Here's a short comparison I made between the V-mod pickups in my Am Prof V and my Am Orig 60s P with the pure 63 pickups. Don't want to say too much but I think it's pretty clear that the new V-mods sound more hollow, especially on the lower strings where the Alnico 2 magnets are. I raised the pickup height on that side in order for compensate for the loss of output but volume in db is one thing, sound that carries is another. I hope this helps some of you and I want to point out that I think both these P's sound good.. also the fact that the Professional is a 5 string probably changes the sound a bit too.