I have 3 Charvels and 2 have JBs and I think they sound great. But one has High Order pickups. Sounds a little different but I play that guitar more than any....
I'm going to go out on a limb then & say, maybe you aren't a duncan guy then. No point in beating a dead horse ya know, ya tried 1, 2, 3, 4 + maybe time to try a different brand. I would personally recommend the motor city angel dust to you, aggressive, open voiced like a lot of the harder 80's music, punchy & tight.
-Brent