i find the dimarzio site the most useful for choosing pu
Chasing Trey's tone, while an admirable quest will be hard...he uses a bridge piezo pickup system that bascially equals infinite sustain. Incredible sounding, but not easy to reproduce without a lot of coin.I guess something like a cross between JPage and Trey Anastasio. Trey uses SD59s that are modified and that awesome hollowbody so that might not be the best place to start
This works best for me. I usually try to go for what I think will work best initially, but generally I do a swap or two before I land on something that I really like. Sticking to one builder can help. If you start with Fralin Blues Specials and think they're too hot, congested, and overpowering - go down to the vintage hots. If you dislike the character of the pickup in general then try something with different magnets. A benefit of the emporium is that you have a decent change find someone who wants what you have and you want what they have.I just keep experimenting until I find the right ones, with magnet swaps also.