Graham,
Hi. I live in Worcester. Paul Harris does seen to get a good write-up from a number of sources. I assume you went there - did you have your wheels balanced? What are you currently using?
P.S. I was G4DXD in a former life (a very long time ago)...
Glenn, I used Paul Harris for tyres on my last 4/4, including balancing.
Present car was fitted with new tyres in Kent before I would drive it home - 22year old tyres are not a good idea!
Several radio amateurs on here. I'm not that active, presently.
You have several choices from other posts in this thread - many closer than Paul

Cheers,