I think the old 3 way method switched the neutral.

Don is correct you could do this with 2 NMCs if you follow 300.20(B) to do it, although it would be unusual.

But looking at the nice drawings it seems that there is only one 2 wire between switches.

[This message has been edited by iwire (edited 03-17-2003).]

Bob Badger
Construction & Maintenance Electrician
Massachusetts