After reading your post 5 times (about the restrictor pill) and a google search. I think I understand a bit about it. But I am not completely sure about it or where to if it or cleaning the pipes to/from the boost control solenoid. I am not that good with cars yet
I did read this pdf about it, from here
http://www.cobbforums.com/forums/showthread.php?t=32552
I'll try to see if I can see the pipe they are talking about. But if I could get one of these pills off you that will be great.
Just wondering if it is the 'open neck' designed that is cause it?