Actually for MFDBs does it even matter?
Not so much with regard to sensor performance, but a shot count can be an indication of how much the product has been used, which can be a factor in terms of the wear and tear on other components. In addition, shot count does affect selling price, mostly for perceptive reasons. A DB with 1,000 shots on it is going to sell for less than a DB with 30,000 shots on it. In other words, a buyer will pay more for a lower shot count, regardless of the real world ramification in terms of performance or maintenance.
Steve Hendrix