there are rule of thumbs to get you started (factory specs), but in general, listen and choose what you like / prefer.
I personally try to lower them as much as I can (opposite of you) as long as I like the sound.
It is free modification and completely reversible. One suggestion though - before adjusting measure the starting point just for reference.
i also balance the low strings and high string - so distance between strings is not the same.
and then try to balance both (all three) pickups to have same volume.
And definitely pickup height has really huge influence on the sound.
Check youtube there are a lot of videos.
One example:
Guitar PICKUP HEIGHT Vs AMP GAIN
hope this helps
I personally try to lower them as much as I can (opposite of you) as long as I like the sound.
It is free modification and completely reversible. One suggestion though - before adjusting measure the starting point just for reference.
i also balance the low strings and high string - so distance between strings is not the same.
and then try to balance both (all three) pickups to have same volume.
And definitely pickup height has really huge influence on the sound.
Check youtube there are a lot of videos.
One example:
Guitar PICKUP HEIGHT Vs AMP GAIN
hope this helps