Sends with "backwards" potentiometer wiring - why?

[cuelist]

I've recently come across a couple of console schematics where the auxilliary sends have the potentiometers wired "backwards".
See example "B" in my sketch. I've tried to figure what could possibly be the advantage (if any) but I am coming up short.

 

[C.B. - Boudio]

In A, there is always a 50k load to the signal; in B there's always a 50k load to the mix bus. It all depends on the rest of the circuit; I don't know much more to be honest.

 

[cuelist]

In A, there is always a 50k load to the signal; in B there's always a 50k load to the mix bus. It all depends on the rest of the circuit; I don't know much more to be honest.

Actually, in "A", the load varies between 50k and 9.7k depending on the position of the wiper. At full, the 50K pot is effectively in parallel with the 12k since the buss is at virtual earth.

In "B" the load varies between 12k and 24.5k. Max load (12k) occurs at full or zero position while minimum load is at 50% since then the pot is effectively two resistors at 25k both tied to 0V (actually 0V and virtual earth).

So I suppose the "B" loads less and has less loading variation depending on wiper position.

 

[mskeete]

I thought "B" was about having less noise gain from the VE amp with the pot at 0?