There is an article in the March,2011 "Guns & Ammo" by Craig Boddington "Out of the Box Accuracy" that I found quite informative.
It relates very well to the array of posts in this thread.
I don't know whether Boddington is an "EXPERT" or not, however he has a varied and broad experience base.
I found his comments enlightening and seemingly unbiased(the key word "unbiased").
GOOD LUCK and GOOD SHOOTING!!!