Multiple install of Mavericks

So I get the Life Hacker process described in the main Mavericks thread. Now this should work well for clean installs, but I'm more interested in multiple upgrades.



Is it just matter of copying the same installer in the apps folder of multiple machines, or do I need to use the USB drive in a different way?



Thanks

via ehMac.ca http://www.ehmac.ca/showthread.php?t=111921&goto=newpost