Hi,
I aslo have a GL 1505 with Flat and GL 2000 with RW. Jazz deluxe RW, Guild Starfire with Flat, Fender Aerodyne with Flat and a old Fretless.
For a P sound, depending if you are looking for a more vintage sound. You can have your GL 2000 with flat to have that P sound. But, personnaly I...