So on my board I have a digitech whammy and a digitech Harmony Man. I do not yet have a power supply for the board and am still using wall warts. The Whammy is labeled 9v AC 1.3a and the HM is 9v AC 1300ma. Isn't that the same thing? why are both units and their respective power supplies labeled differently, if so? Can't I just get a 9v AC power supply with at least 2600ma and daisy chain them?