The OP did not attempt a pure technical post mortem, he was writing from the pilots' perspective. And I don't even think it is too biased - he admits that some

The OP did not attempt a pure technical post mortem, he was writing from the pilots' perspective. And I don't even think it is too biased - he admits that some old flying techniques just did not hold anymore with this new design. Last but not least he still gave a pretty good technical reason for the failure of the design - the under-powered engines that delivered about 2/3 of what they were supposed to deliver and that could not be exchanged for more powerful ones. All in all I think it is a pretty nice read for a lazy Sunday afternoon :)