I have seen countless topics on max boost for the rb25 turbo, to be honest i havent notcied any larger number in s2 failures then s1 but that doesnt mean your not wrong. I have seen lots of results comparing 10psi to 14psi and the max power figure didnt change, however the midrange was improved on the higher psi runs. So then in theory if the S2 turbo spools up quicker as you say, then that would be an improvement in the midrange without needing to up the boost anyways. But thats just my opinion at the end of the day i cant say for sure but thats just what i reckon. Sauwa wouldnt be the same if i didnt get to disagree with you Bubba.