| I had the opportunity in the late 60's to work for a while on a Vulcan, and fully appreciate their desire not to fly if unserviceable. Even a drop of oil hanging on a rivet head can be a sign of untowards failure somewhere along the line. An oil leak could travel nearly the length of the aircraft before finally appearing on the outer skin, and could take many hours, if not days, to trace back to the original source.
There was no plug it in and tell you where the fault is, like on modern day equipment. It was all done by feel and sight, personal knowledge and reams of text in a massive set of manuals.
So at an airshow, when they say it has been cancelled, think of the poor guy (usually the smallest on the team) stuck thru a 12" access panel, into the pitch dark, trying to locate a fault.
You wouldn't want to lose a wonderful piece of our heritage just because it disappoints a few people at an airshow.
Eventually, they will get all the snags fixed, it is early days yet, and then you will be able to see the true beauty of the design.
When it flies past, you will actually feel it inside your body. It is an experience, once felt, is never forgotten.
John | 
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