check this out ...
guy on rennline 996 forum calls himself 'porschetech' has developed a mod where you deactivate the aos by blocking the reference air vent such that the diaphragm doesn't move. asking people to pay $10 to the 'porsche gods' (his paypal address) for the instructions to block the vent. folks lining up with chequebooks in hand and a glass for the koolaid ...
https://rennlist.com/forums/996-forum/1176175-the-ultimate-aos-solution.html
so, less than two weeks later and 135 posts. he has 'diy licenced field testers" (the guys that paid $10?). it appears that he has now incorporated an aftermarket aos diaphragm (probably realised the original one was there for a purpose; sorry didn't have the self-control to read the entire thread). appears to be the same one that raby tried and didn't use because was too big - allowed to much vacuum on crankcase at idle causing overrev as engine drew in combustible vapours.