Fishman Fluence Classic.
Have you tried the Fluence Modern? I hear it is quite trebly and articulate set with an alternate voice that is "single coilish".
Idk the Fluence ecosystem, but EMG makes a bunch of add-on circuits that can transform the pickup. They have one that will make humbucker sound more single coilish to varying degrees. If you already have active electronics, you might try one of those.
If they were passives I'd tell you to play with the pot values. I know that tweaking active pickups is not the same as passives.
