My MWS wires had stickers on them saying how to look after them etc, unfortunately on three of my wheels the stickers were where the tyre rim seals against the rims. As a result I had three very very slow punctures, so probably worth checking.
This same thing happened on my 3.7 Roadster when new. I was wondering why the steering was so heavy and saw both fronts a bit flatter than they should have been.