Andy
You are spot on, Majority of wheel balance /tyre specialists do not know how to correctly balance a wire wheel and do not have the correct adaptor/s.
Suggest any one experiencing balance problem in the UK, either visit
MWS Wheels or contact Longstone for nearest details of nearest approved supplier / tyre specialist for correct balancing.
You will notice the difference immediately. If the tyre Co you visit hasn't the correct facility don't waste your time and money, they could balance Ho, Ho, Ho! time again and again and get different results, However they would be consistant in that the wheel/s were never properly balanced and never will be, without the correct tools and expertease.
Same applies in any Country, Visit a recommended wire wheel / tyre company and get the job done properly and pay for it once only.
Good Luck.
Keith