Hi, I've bought a second hand Bongo 5HH and I've almost got it working. There is a difference between whats on the EB site configuration for the knobs and whats on this bass. Where the blend knob is on my bass it is another stacked knob. I assume that back in 03 they had a stacked blend knob system in place. Can anyone verify if my guess is true? It goes volume knob then 3 stacked knobs.