I have the very same issue and Tony has set mine up twice as well ... still pulls to the left constantly ... I took it to Tony asfter replacing the wishbomes with new Lemforder ones and new top suspension mountsI also had Tonys garage fit 2 new front tyres at the same time and it STILL pulls left ... so it sounds like a similar thing....in the words of Nigel Farage "Baffling!"