06-19-2009, 07:46 AM
As the article says, only one rail needs to be gapped, and you can use SPST/center OFF switches instead of DPDT's, and far less wiring to do. I don't know if it's still available, but see if you can find a copy of Kalmbach's basic wiring handbook (mine was published 50 years ago.....my age is showing.. :oops: ). This will explain all sorts of things which are as applicable today as they were 50 years ago. Good luck..!! 
Gus (LC&P).