We don't submit exact quantities for production after each pre-order. We'd never keep up. There is material lead time, manufacturing lead time, MOQs, etc. Rather, we've already ordered large quantities that will be produced in batches. If, for example, we have an incoming batch of 2000 units and one pre-order period only sees 1000 pre-orders, it makes perfect sense that the next 1000 pre-orders would have the same estimated ship date.