Stacking pretty to my untrained eye. (although it does seem like aculraw adjusted it right before taking the photo)
It's probably because I'm wearing Levi's 511s which have a bit of stretch in them so they naturally stack pretty nice (unlike say stiffer APC which you will need to break in more). Also I think their 34" inseam is about perfect for my 6ft frame. I may be OCD about clothing but unless stacking looks really terrible I don't mess with it.