I missed some Hi frequenties an my gravite bass well, I was luky suprised, that if I remove the Bartollini soapbar-PU's that they have 4 pins! Also 2 additional kables mounted! and my old bass sound's like I ever wanted! (I use the PU-Blend pot now to blend from the inner 2 single coils to 4 single coils (middle position) to the outer single coils) I never use just the neck or the bridge PU anyway!