Amsdorf:
Those who knock Service Grades are probably sorry that they paid too much for a gun which is either "too purdy to take to the range", or shoots no better than a Service Grade.
The bore in my S. Grade is so bright that it appears to be chrome-lined.
Let the 'maladjusted problem children' (or the level-headed adults) pay the extra money for higher grades...that equates to less demand for S. Grades.