Re: P-Rails or JB/Jazz for maximum versatility
I just have to add my $0.02.
I have a lot of guitars with P-Rails in them. One of them is a Schecter C1, so this info directly applies to you. I also want lots of versatility and find that when set up properly the P-Rails can do it in spades.
I have probably done more experimenting with the P-Rails than anybody else since it first came out. I've tried both models, each with every alnico mag commonly available and in many combinations in each. And I even tried different orientations of each.
I admit that I was never impressed with the P-Rails Hot version, but I contend that the lower output neck version is God's gift to guitarists who want versatility.
Without going through everything I did in my testing, the result was: The neck model used in the bridge, but rotated so that the Rail coil is closest to the bridge. To give it a bit more oomph, I placed an A8 mag next to the Rail coil. Keep the A5 next to the P-90 coil. Mount it in a Triple Shot mounting ring. I find that I use the P-90 coil most of the time (man, what a great tone, not only "...not half bad..." as Orpheo suggests, but really GREAT)), and rarely if ever use the pup in series...too thick and muddy. In Parallel it sounds and acts very PAFish, and with the A8 mag it is NOT "...weak and lacks power..." as Orpheo has suggested. The Rail coil with an A8 mag next to it and mounted next to the bridge has a really nice clean, bright tone but with some mid-range body.
I also like the StagMag which has a powerful series humbucker tone, but when split has a really nice Strat-like tone.
If you can only afford one pup and want extreme versatility, get the neck P-Rails, an A8 magnet, and a Triple Shot. Later when you want to change the neck pup, there are many that will work wonderfully: another P-Rails, Demon, Jazz, Pearly, A2P, 59/Custom hybrid, etc.