As it says in the title, I got a 5'er where when blending the bridge and neck pickup equally, the volume drops significantly on the low b. Panning to neck or to bridge helps a lot, but not fully up to the volume of the E or A string. I have ordered a tapered b-string single, but any guesses to what may cause the volume drop? I know there is a scoop when you blend two pickups, but this is not normal. I also have a Warwick 5'er that doesn't have this problem. I borrowed the DR Hibeam b-string for that but it didn't help.