Hi
I handled both a SAA and a Ruger New Vaquero at the last gun show (March 3, 2012). The Ruger grip seemed slightly bigger and I have long fingers. From an NCOWS perspective, I'd like to have the 7.5 inch Single Action, but they allow Rugers. They look pretyt much the same on the outside.
I'm switching jobs and cities, so it will be a while before I have to make the choice and put down the $ anyway.
Later
Mike
Current Kansasan, Future Okie