Dear Sheldon, I was considering changing the Glock preamp on my Z2 in order to obtain a more coloured sound, something like Kubicki electronics. Can You send me information on the impedence of the pick ups? They are FD4, with series parallel capability. Another question: as You already use CNC for bodies, did You consider making an Ergal body instead of wood? If yes, how do You feel about it? Many companies mill the body, but a dear friend of mine was able to make a mould for a body shape specific. The material was aluminium - magnesium, the same used for the rims of racing motorbikes. Sounded great indeed. You could make a unique mould for the Z series, and use different PickGuards for accomodating the configurations Z1, Z2, and Z3 pick ups. Thanks a lot in advance for the information! PS: I am really waiting for Your DW strings in NICKEL.