Chris and Iain, with a little help from Kester, did the supercharger install on my ST170 whilst at PE. Chris then did all the mapping, even going in on a Sunday afternoon because something was niggling him and he wanted to sort it out !
My car has just had an engine re-build and some other "additions" done at Torque of the Devil". My car will go wherever Chris goes, as he knows it, has mapped it and understands it. This is no reflection on PE, as I took it to them on Friday for it's MOT.
At least Chris didn't try and talk me into putting the engine in the boot ! 