Why don't we all gang up on them and demand a response?
Rubber failure; GR172
Leather failure; GR172
There, two lists, two wheels (so far). If people can be bothered to say which they've had we can get an idea of numbers - we know how many 172s and 182s were built, bet at least 50% have had either problem. If there's enough demand maybe they can fix their untested cheap crappy design.