There had to have been reasons for the various malfunctions. The gun is a machine, if it does not function correctly, there has to be a reason for it. If you were in fact an armorer, you should have been able to figure out the causes of the malfunctions and remedied them. In all, you do not seem to have had any more problems with your Ruger than I have had with several Colt 1911's over the years.
The barrel was not fitted to the frame properly.
The bushing was not fitted to the slide properly.
The extractor geometry was off.
The firing pin stop was improperly fitted.
The MIM parts were crudely fitted ( or not fitted)
That is all I can remember off the top of my head. Just because I do not get overly verbose does not need I am ignorant of the solution.
It was more work and money than I was willing to put into a mediocre low end production 1911. I paid the same for my Springfield RO and it runs like a well oiled machine. I have had RIA's more reliable and accurate at half the price.