So to sum up tonight
Advice was sought from another reputable tuner of what the issue was.
He said that his initial impression was that it was the turbo, a test was done in accordance with the tuner to see if his theory was correct. I won't go into details of the test as this is not my area of expertise and i will just explain it wrong.
So case closed end of story, 2 experienced tuners and 1 experienced engine builder have reached the same conclusion that it is the turbo and that is the limiting factor on my setup.
The original intention of my post was to share my results and to see peoples opinions on what was going wrong. Now that we have found the answer I think its time to have tea scones and some Cadbury favourite chocolates.
In saying all this I still think the ss2 is a great turbo and hypergear does a great job