Ok i'll make sure i keep that learnign stuff in mind when i get mine. It comes as standard in the turbo kit i'm grabbing, so on the pocket its basically costing nothing for a tunable system. Personally though one thing doesn sit right, greddy and other kit providers include piggyback systems in all thier kits (including GSR's)- why would they do this - becuase i'm sure they will be liable when something pop's due to the ECU relearning..? Is this the same with rising rate FPR's and igniton coils (ala MSD) which retard timing with boost??

Regarding the 9PSI statement, i dont see how that can be true. Check out the emanage groups on yahoo, their are some for WRX's, TT Supra's and its a popular choice with EVO's, all of which run more boost then above.
Good thread though, tuning out better then just saying 'this sucks, this is good' if u know what i mean.