Must admit I worried about this too but didn’t phase him at all. He even had the correct size cones on board when it came to balancing them. One of the wheels had a very slight “buckle” which took a while to balance out but he managed it (I put this as the spare as the other 4 were all perfect). I’ve no connection to National tyres at all and it’s the first time I’ve used a mobile fitter as opposed to going to the workshop but it went like a dream. Can’t speak highly enough of the service they offered