C J Campbell wrote:

It is up to those that assert there is such a thing as damage from shock
cooling and shock heating to prove it.

With the cost of engines the way it is, I suggest that the situation is exactly
the other way 'round. Until you can prove conclusively that shock cooling does
not exist, baby the engine.

George Patterson
A diplomat is a person who can tell you to go to hell in such a way that
you look forward to the trip.