prydwyn:
First of all, welcome to the Forum.
As for your question, you probably know that Roy Huntington is the Editor of American Handgunner and the Editorial Director of Guns Magazine. He took those positions after a long career in law enforcement and is known not only for zero tolerance of "BS" but also for great skill with a handgun. When he reports getting 2.5" groups at 25 yards with one of the R9s, you can be certain that he got 2.5" groups at 25 yards.
I'm not that good (my groups with the Rohrbaugh are usually around 4" to 6" at 25 yards), but my early-edition R9 (No. 132) has shown no vices.
Again, welcome aboard.