I think alignment comes down to sh*t mechanics perosnally. I've used loads of places over the years, and a lot have been sh*t. Most lately a place called Alba Tyres in Leeds... I was havig four new P Zeros put on, so had 4 wheel alignment done at the same time, even though it felt fine I wanted it spot on with the new tyres. It came out from the garage and within 30 seconds I realised it was not aligned right, with quite a significant pull to the left. I took it back and gave them another go, and this time it was even worse... needing a 45 degree steer nearly to go in a straight line!! I went back and lost it a bit with the manager (Three trips in, six taxis and a they also put p zero neros on orignially, and when I called them on it they tried to tell me the neros were the new replacement tyre for the "p zero"!!!) and he admitted they hadn't actually done the rear alignment on any of the three attempts! He offered to do it again, and I obviously just told him to get lost! I ended up taking it else where (Andy Turner Engineering in Leeds) and he was excellent! It drives like a totally new car when he's had it. I probably have the alignment done every 10,000 miles (6 months), keeps me happy! I can't stand it if it pulls left!