I would agree with this. My guess would be around 50% 17/18 built MPs would have the blisters. It seems that the blisters start to emerge when it's cold and moist and are less apparent when hot and dry....
My local dealer got the new roof for me and it has been sent to the Merc authorised body shop waiting for me to bring the vehicle in to replace the roof. It's a bare fibre glass roof without paint so it would need to be painted at the workshop before fitting. The body shop is Fastlane based near Heathrow so I might try to pay them a visit to make sure they know what they are doing. I have been told they had only done one roof replacement so far... I have been dragging to bring my MP in as I'm not sure the new roof would be better than my existing blustered one, at least in medium to long term....
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