I have a BEE preamp in a bass that has 2 pickups that I recently acquired. It’s a 3 band that’s wired volume, treble stacked bass/mids. In other words, there’s a single volume for both pickups. I want to change the volume to a stacked blend/ volume. Can someone help on what pot I need? I have a Bartolini stacked but I’m pretty sure it’s a blend pot. Any help would be greatly appreciated. Thank you in advance.