Nice one! It's a good feeling when that 2nd turbo kicks in!
Good of you to post back what the problem was. That's one of my pet peeves on the tech forum is when people look for advice and post a fairly loose description of the problem, then get some very helpful answers from members which take a long time to write up and post and then don't even have the common courtesy to post back saying thanks or to say if it helped solve the problem.
It's just good manners as people have gone out there way to help. I know if it wasn't for that search button and the knowledgeable people on here then I wouldn't have as good a car as I have got at the moment and I'd certainly have a few less pounds in the bank account.