If you go to guitar nuts 2 you will see all the pickup guys quote capacitance in their pickup graphs. And people will say you should scatter wind pickups because it lowers capacitance. But I think you've demonstrated it probably doesn't make much difference. People that concerned with tone will either have an EQ pedal or have an EQ pedal in their amplifiers anyway. If you want to do another test I would urge you to get a picking machine, since there's probably a lot of confirmation bias.
