I had the turbo cutoff problem again while driving on the highway, so i contacted superchips and asked if they could do something with the map. They thought it was an engine problem, and had only had 1-2 other 2.0 tdi's do this in past 3 years. They sent me a new map with less boost and fuelling, and i could notice it not being as responsive straight away.
I then asked to get my normal map back, and if they could increase on my normal map any more... so he gave me the standard map, and another one with a little extra boost, and extra fuelling. I now have 3 different maps saved on my harddrive
I loaded the high power into the bluefin and uploaded to my car, and immediatly felt the difference! It is much more responsive at all gears and at lower revs. Only downfall is that when you push all the way down it smokes a hell of a lot But they assured me that this was not harmful for the car. They stated that the high power map gave an extra 10bhp at the top end.
So I'm leaving the high power map in the car for now, and se if the turbo cutoff happens more often now. It has only happened once in last 5 months.