re: Been out of the game a while. Help with my guitar.

Different impedance. Neck is 8.02k, Trembucker is 14k.

Those numbers are actually DC resistance. Measured in ohms.

I use DCR, inductance (measured in henries) and magnet type and gauss ("pull" strength) to "sort" our pickups into general classes.

VERY generally speaking, middle pickups are overwound compared to neck pickups, and bridge pickups are overwound compared to middle pickups. Because the strings vibrates physically less the closer one gets to the bridge ... meaning less disruption of the invisible electromagnetic field surrounding the pickup.

You overwind as you get closer to the bridge to balance perceived output between pickups. AKA, no volume drops or spikes as you bounce between pickups.