Date and other plans dependant, I am always up for a CVR4 meet.
Not being so local, I can't guarantee anything, but I'll watch the thread! When you have a certain date and place, it would be worth starting a thread in the UK Events forum, as other people might notice it too.
Uneven wear can cause the issues that the tyre place has told you about. Make doesn't affect this. Try swapping your front tyres to the rear (and rear to front!) and see if this makes any difference. If the tyres are non-directional, try swapping left/right and see if it pulls the other way. If none of that changes anything, then I would say that the garage has done a poor job of aligning.