There’s a few things that come up again and again in the studio:

Intonation,

If your guitar and bass are not set up right it’s likely to not sound as you want it, if you find yourself constantly adjusting the tuning but the guitar still sounds out higher up the fretboard then the intonation is out.

it’s easy to check (just check the tuning of the open string and on the 12th fret) and easy enough to fix here’s a link to a step by step guide .

Some consider this to be a black art, I see it as a simple mechanical problem and have set up dozens of guitars and basses in my time. Only if there are other things wrong with the guitar (worn frets, bent necks, floyd rose tremolo (haha)) is it a bit more work and you might be better off seeing a specialist.

all it will take is 15-20 min per guitar that can easily mount up to an hour in the studio and we prefer to work on your music than on your instruments…