Aviate1138 ponders....
So how many hours out of each 24 will it/they now be test flying? If there is a shortage of bolts presumably they won't be able to build more [test] aircraft than first needed. What are the penalties for late delivery? Airlines might not be pleased to collect their early ordered aircraft knowing they have been thrashed a bit to meet the delivery deadline - I suppose a little cash easement will be negotiated.
Look forward to the 787's first flight. Always a special moment when any aircraft, big or small, lifts off the ground for the first time.