Yep there's a strong correlation there:
View attachment 136137
It'd be cool if major manufacturers published more info about things like wire gauges used and other info.
We used to calculate and measure the amplification in a "frequency responce"and visualize it for all kind of amplification/signal boost when I studied electronics at the university years a go. Would be nice to see simething simular for pickups, evern though I dont think the different brands will publish this kind of info.