Screamingdaisy
(O)))m
As to treble bite...here's the thing. As with most pickups, the longer the cable, the more capacitance, and the more treble rolloff. I noticed in your pedal chain that you don't have a good buffer. It makes a difference, and really preserves your treble, because even with just a few pedals, if you're running say 20 feet of cable to the first pedal, and then some pedal interconnects, and then a cable to the amp, chances are you've got 30-35 feet of cable capacitance.
Unbalanced cable rolls off high end noticeably at 20 feet.
Thanks, and you were right. I'm used to intentionally running 30-40 feet of cable with a Les Paul to roll off some top end and shift the resonant peak down. Never really occurred to me that maybe PRS designed this pickup for the modern era and that it was voiced to sound correct through a normal 10-20 foot cable.
It's still a dark pickup and I'm getting nowhere near the top end of the LP... but the honky/nasal quality is gone and it sounds a little more open/natural.
Finally, of course, set your amp up differently for a PRS than for a Gibson. I generally set the amp up with the guitar volume around 5-6, to get that "edge of breakup" tone. Roll back the guitar volume to clean up more, roll it higher to get more gain, and of course, more treble bite. Do the same thing with your guitar's treble control. Want more bite? It's on your guitar, without even touching your amp!
You'll find you have a lot more control over your tone as you play this way. It's old school (heck, I'm old and therefore school was new when I started out!) and you may already do this, but it's the best way to run a PRS IMHO, and in fact that's how famous PRS session players like David Grissom do it, too. You'll also get the most out of your coil splits this way (and yeah, they're great sounding aren't they?).
That's more or less how I'm setup for an LP, except I'm generally setup to cruise on 7 and roll up or back from there. I don't really aim for a specific number on the dial, just kind of feel things out over time and 7 seems to be the spot for me on those guitars.
The McCarty I'm still feeling out. The taper on the volume seems different, so I'm rolling down a lot further before I clean up. Fortunately, between the speed knob, knob location, and the low inertia of the pot shaft riding the volume on this thing is a breeze. This control layout is primo!
The thing about a good PRS is that it has a beautiful, balanced tone that sings. It doesn't really favor any one part of the frequency response in an edgy way. But there are lots of ways to skin a cat, and with a PRS, it's not hard to figure out what is going to get the job done.
In the end, I'm rather enjoying the more rolled off top end. While it's taken some edge off my lead tone I think it's improved my rhythm sound and my cleans are a bit more piano like. It's also given me a new, smoother lead tone I never had before, and I've found I can use a pedal to put edge back on.