I would be leery of using an alkaline sanitsizer with an alkaline cleaner. A lot of the efficacy of the traditional approach, i.e. PBW followed by StarSan is based on a big pH swing.
Many of the pathogens we face are killed by high pH, most of the survivors would be killed by an acidic rinse. PBW, OxiClean and One Step are all similar chemically, and are alkali cleaners with a little oxygen kick.
I use StarSan, followed by Iodophor for sanitizing. Iodophor does not depend on pH, but it works better in acid environments.