I'd be curious to see how yours or anyone running a pag kit actual boost compared to your spring pressure.
I have the pagpart turbo kit and today i bought a manual boost controler for it and is so much better then the n75. Whats the problem your having didnt read the whole thread? Sent me a pm i been thru a lot to figure out how to make the boost that i want and dosent spike and it hold at where i want. Im not an expert but can tell you what i have done and tried.