Wow ... I have a hard time imagining that anyone who received this reply would be happy with it. To me the OP asked two simple questions. Who cares if you don't think the blade gap is important? The OP wants to know. Writing 0.64 mm is a lot easier to do than their dismissal. I agree that they shouldn't exchange the razor based on the customer not liking it. Just say that in a polite manner. He was just asking to inform himself. In the end, I hope that the companies who provide great customer service will prevail. That does not mean folding to every request of a customer, but treating the customer with respect and politeness is essential.