It isn't a myth. It happens. On some cars, it is worse than others. If it doesn't do it on your car, then you got lucky. There is a sound basis for why it happens, and there are also a ton of cars that had problems with it...so it isn't like it was just made up. My old black hatch used to have problems with it...that is why I went blow-through on my white hatch (I wanted to experiment...and was one of the first to do the blow through and share my findings).
Dennis
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