Vishnu uses MAP as a Load instead of tps.
TPS does work but does require that the boost is there at it's load points. if there is more boost you will run lean if less boost it will run rich.
With the SBC-ID that you run I would run Vishnu's tunned uni-chip. But yes it is the same as turboxs and cobb. Just diffrent tunning technics.
Sending you a PM.