A: Maple though being muddy with a CS doesnt make any sense to me.
B: I consulted Tim about this, and he pointed out some new (to me as well) BKP 550k pots for high output humbuckers. That would be the easiest and cheapest thing.
C: If the CS is muddy, which is frankly stunning, then the only thing I know of that can deliver tightness like nothing else is The Aftermath; a pickup designed for supreme tightness and clarity. Its not on the usual BKP menu, but I asked Tim about it and its cool to suggest it to you - The pickup doesnt *really* have a name, but if you ask him for an aftermath then you'll get the tightest BK available, and be one of 3 people that have one (Tim, me, you). That irks me just a little ;) but its the best thing I can think of for you.