I was doing some reading and found some of Armalites Technical articles on their improved bolt design that were interesting to me and wondered what the professionals here thought of it.

So whats the general opinion of the Industry Professionals here on Armalites improved bolt design where they relieve the locking lug opposite the extractor to reduce stress at the lugs on each side of the extractor recess?

Any real world advantage to the design in extending bolt life?