That's a good point. On a two pup guitar, if the bridge pup is set at that medium distance, the neck pup for the sake of balance might be impossible to set up properly.The problem with this is that you don't really get much choice with the bridge pickup. You set up the neck pickup for optimum sound and minimum string drag, then the bridge pickup goes where it needs to go to achieve balance. That will generally be closer to the strings rather than far away.

If you spend more time on the bridge pup, would it be better to employ the reverse approach, maximizing the bridge for your ideal tone, or is there a reason that it is always best to optimize the neck to minimize drag?The problem with this is that you don't really get much choice with the bridge pickup. You set up the neck pickup for optimum sound and minimum string drag, then the bridge pickup goes where it needs to go to achieve balance. That will generally be closer to the strings rather than far away.
If you spend more time on the bridge pup, would it be better to employ the reverse approach, maximizing the bridge for your ideal tone, or is there a reason that it is always best to optimize the neck to minimize drag?
The problem with this approach is that the neck pickup has to move much further, and you are quite likely to run out of screw thread before you achieve balance. That's why I always work from neck to bridge.
I don't find it so. With P90 at least. I always set bridge height first, then adjust neck accordingly. Could never achieve a good quack middle position your way; I always end up with the neck sounding too much like middle position.The problem with this approach is that the neck pickup has to move much further, and you are quite likely to run out of screw thread before you achieve balance. That's why I always work from neck to bridge.
I don't find it so. With P90 at least. I always set bridge height first, then adjust neck accordingly. Could never achieve a good quack middle position your way; I always end up with the neck sounding too much like middle position.
This is an interesting demonstration.
Getting the right balance can be a problem, but there is also the possibility of using the volume controls.
I tend to run pickups really low....