Alright, so now we're going to adjust the pickup heights on a Gibson Les Paul. This also can be personal preference. It depends on what kind of sound you like. Some guys like to bury the pickups further in the guitar and have to really play it and let the amp do more work.
There's a good measurement to use. What you want to do is fret the guitar at the highest fret and measure from the pole to the bottom of the string. You want it to be about 5/64. You just want to push that string down and make sure that it's not hitting the pickup itself. You want to adjust them by using the screw on the side. Usually it's a flathead screwdriver.
Check it, and perfect. You want to do the same thing on the bridge pickup. Measuring from the pole to the bottom of the string. So, you're going to do the same thing with the bridge pickup. Measuring from the pole to the bottom of the string to about 5/64.
That's how you adjust the pickup height on a Gibson Les Paul.