I've got a late 90's Stingray 5 that I'm using with a H-Series Demeter, QSC RMX2450, 2 x Aggie GS112's and a Carvin 15. I'm thinking about getting a Bartolini 72MV5E or Basslines SMB-5 pickup. I would appreciate any feed-back from those who are using these pickups. Also should I replace the Pre-Amp as well and what Pre-Amp to use? I'm looking for a more thick, buttery sound. Thanks much.