Neil,was getting a bit hesitant just on low boost but more disconcerning(word fir the day)sometimes when giving it the max it just suddenly loses boost it's like hitting a wall,maybe 5k revs or above.
Happened on Saturday night when overtaking that Forester dude coming home from the rally and it was a problem whilst on track a few months ago.
The wot issue may still be what I originally thought,coil pack/s ,need to wait and see if it does it again after cleaning out the solenoid and pipes.Unfortunately didni have the presence of mind on Saturday night to check the boost gauge that I've just fitted....vision was instantly taken up with ££££ signs
Even if it turns out not to have fixed that problem still vastly improves low and mid boost performance.
Col