I got an 11.9 Brad. I have backed to boost off to around 20psi. This was on pump fuel, 30deg ambient and street tyres at regular psi.
Oh and the wind was blowing the wrong way and I had my tongue out the wrong side of my mouth. I think there is a lot more in it.
I have a direct clutch twin plate and its and noisy as all fcuk and a pig to drive. Who wants to buy it? My new car arrives shortly.