Yeah, I hadn't thought of that. I used to have same problem. I used to get booming bass strings and I'm not sure if I changed my amp's tone to stop it but I later changed my pickup height and I think I got it solved. This guitar has humbuckers in the bridge position and single coil pickups in mid and neck positions, so I put my humbucker up closer to the strings (sloping down to bass side) and my single coils lower - neck lower than mid so that fretted strings when played at 20th (or 21st - can't rmember how many it has) won't hit the neck pickup poles.

I tried really lowering the pickups on another guitar and I know what you mean . It really gives you a different sound and volume, and feels quite different. Having it lower allows more vibration and 'instrument' sound (that's not really totally true I suppose but I just mean more 'vibration', and having them up close makes the magnets 'pull' on the strings and so the sustain of notes is reduced because the strings are being stopped from vibrating a bit, because the magnets in the pickups are pulling at them. I use the higher up pickup for higher gain stuff especially, where I want more db  - but it just depends on what sound each person is after. I like distortion/overdrive but I also like cleaner sounds too, so I like both types. I don't use the guitar I 'really' lowered though, as it has problems.

Have fun searching for that 'sweet spot' where it sounds right.

How many pickups do you have and are they all the same type? Maybe you could try one higher and one lower etc.

God Bless,

David