Douh, missed this post!
Yes the sound changes, and the secondary is definitely working, as it will hold 0.6-7 all the way up thurr.
No idea, I'll check that right now!
Boost controller has a 'T' in the wastegate line to the bottom port on the controller, as per the in-durrwebs instructions below.
Worked before, so it should work now, I have tried winding it in, will make the boost less if its completely closed, just wont go over 0.7 even wound out past the clicker detent ball.