Pickup wiring

[shamahockey]

I'm looking at buying a Juggernaut bridge and either Emerald or Coldsweat neck to go into a schecter 7 string with a mahogany body, maple neck and ebony fingerboard.

I want to wire up a 3 position switch so that position 2 is one coil from the bridge and one from the bridge and hum canceling.  From my reading this is how Petrucci wires his pickups?  I have 2 volumes, 1 tone and a 3 way blade switch. 

1 - Do I need to request that the neck pickup have it's polarity reversed?

2 - Is the middle position of the switch supposed to be wired in parallel or series to be hum canceling?

3 - Does it matter which one of the coils is used from each pickup for the middle position?

4 - Can someone refer me to a schematic for this wiring?

For reference I've searched thru the boards and talked to BK previous to this but am still a little confused...

Any advice would be appreciated.

[Troy Baer]

The Petrucci style wiring is here:

http://www.dimarzio.com/sites/default/files/diagrams/2h1v1t_1ep1111petrucciDsonic.pdf

It requires a 4PDT switch.  I'm not sure how you would modify it for 2 volumes, though.

The middle position should be hum cancelling.  It's the two inner coils in parallel (though Petrucci has repeatedly referred to it as "series" in interviews for some reason).

[shamahockey]

Thank you for the reply! 

Are the 2 inner coils the magnet or the slug in this scenario? And is this assuming I've requested a reverse polarity neck pickup?

[Troy Baer]

The inner coils are usually the slug coils (or the blade coil in the case of the Crunchlab).

I could be wrong, but I don't think this requires a reverse-polarity neck PU.  I've done the Petrucci wiring on a couple different guitars (an ESP H207 with a Dimarzio Air Norton-7 in the neck and a Duncan Custom-7 in the bridge, and an OLP Petrucci with the stock pickups) and never had to do a mag flip or anything like that.