Well yes i havent personally used the avcr but have friends that used them with stock turbo setup and it worked ok, but using external gates and bigger turbos had problems.
I was told the greddy profec b spec II was the shitniz of boost controllers and got one and it was such a bitch to setup especially with the external gate, Ben from racepace and nige/gerald from ice didnt even bother to install it as there were so many bs things associated with it it took 2 hrs on the dyno to set and hold a boost setting. So i sold it and got the hks evc which was not fancy looking but worked a charm.
Roy, ask Ben or Nige about AVC-R and they will tell you they have had more trouble with them that success on big turbo cars
Data from the data logger will be good to see also