Hi. Assuming a blend control on a passive Jazz Bass is essentially 2 stacked volume pots, when the knob is in the center position (where both pickups volume is equal) both pickups are at 50% volume are they not? Whereas with a Dual Volume setup one can set both pickups at 100% output and acheive the same thing. Is this correct? My concern is that by using the blend in 50/50 center mode there will be a darkening of the sound due to the load on the pickups, not to mention the fact that I'd be going through an additional master volume. Your thoughts appreciated.