just saw this thread.
I have used one of those on my regular mag for over 15 years. I disagree that they are not better than the standard reg. They are more consistent and increased the accuracy of my mag. My mag is still one of the most accurate guns that I have ever shot. Sure paint/barrel matching is key, but so is consistent regulator pressures and even airflow to the older bolts. (i don't have a level 10 in my older mag).
Plus... the cool factor of it being titanium, and having 8 holes. Does mess up my color scheme though.