cjboy,
Its you who should get facts straight. The US tests could not find fault, they put them back into service, and still continued to have problems.
Of real concern should be the civil UK experience. I know of a number of expert pilots who cannot fault the aircraft. BUT, in the UK, just in the last 6 years, 5 people have been killed in three accidents from non recovery from spins, from a height where this should not be a problem. In two of the cases, it was with an instructor who was conducting training.
All should read the AAIB reports - these are the facts.