Schecter Omen help/advice

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I am not sure I tried tapping on them to figure it out to no avail. Finding information on the pickups and wiring of this guitar is difficult. Most of what I have found is internet speculation and information I can immediately write off as inaccurate.

I did give it a slight truss tweak this morning and it is now perfect 10/10. I still need to dial in the bridge a bit to suit my tastes. I just want to bring down the action a hair more, nothing overly concerning.

If tapping on the coils doesn't tell you which is on, and they are completely noiseless, are you sure the coil split isn't parallel?

That would explain what you are experiencing.