I recently got D'Addarios EXP strings and I think that it's the best strings I've seen so far, in terms of comfort, ease of playing and stability. For durability, I have yet to test it. I've been using the ordinary D'Addarios before but the EXP steps up to its promises.
Also, I didn't know the stringent QA thing about strings before I saw this :
http://www.youtube.com/watch?v=4_MVOZnhLVc&feature=relatedAnyway, what's your strings? ^_^ Just sharing.
