to be honest i'm not sure yet, was going to have a google and find someone decent local to me in a bit.
Theres only 2 in wales. One is Mercedes Swansea who charge £90 just to put the car in the machine. Or there's a garage in porth that will do each adjustment for about £20-30 (they'll check it for free) Nice guys there too.
The best thing about these alignment places is most of them don't test drive the cars.
I've seen cars bang on spec drive like s**t.
Be wary of mainstream places. My Cup was setup as a standard Clio and the rear camber was show as red and out of spec and it drove so much better when I took it to somewhere that specializes and they didn't argue with me and my actual Renault specs printed out and set it from a fair bit of toe-in to bang on straight ahead (Cup only it seems). Main stream place said it would drive terribly. An awesome and impressive day in the wet and dry at Combe beg to differ. Sweet on the road too.
I would suggest making sure your track rod ends aren't seized and there is no play. A lot of places won't ***** around unseizing them for you. I was told mine were seized solid! One of mine required some minor persuasion with a big plummers wrench. Free'd up without damage. Unlike the garages poor effort. Seized solid my arse. No play in my joints either which is nice.