Dunno, it is a strategy I read and trying to see how it works. It is not the direct hedging of same opposite direction as you have stated. I'll send a link to the copy of the strategy. Later
You need zero swap broker to enter into the position where swap is debited and generous broker for the opposite position where swap is credited. And yes triple swap is working strategy for example Tickmill and Hotforex offer swap free accounts, but you have to mix it with other trades carefully to avoid account termination.