People have been doing the PI Intake swap for 3 years now and i have never ever seen or heard of anyone who used the PI head gasket and RTV have a leak. You do understand that the RTV gets dotted in 2 small areas none of which air go through so an air leak is impossible!!! 2 water jackets get slightly dapped in the corner and thats it. RTV does not brake down from water/coolant so failure is not an option. I'm sure there where some people who tried it with the NPI gasket and did hack jobs...but i'm no hack, i give accurate info that i personally know is good or i don't give it at all!
Thats all it takes!!!
See that little spot of black RTV