I'm running a Cobb OTS Stage 3 base map and am still working on my own "tune". I'm currently running ~25psi max boost. It takes a while to really understand the impacts of the wastegate PID tables in ATR, but Cobb has done an excellent job of de-crypting the code and adding their own functions. I recommend the folks that are serious gearheads to read the Cobb support documents, experiment a bit, and datalog to see it in action.