I was reading a magazine article by Ed Head ('The House Carbine,' Personal & Home Defense, Gun Buyer's Annual Presents #92, 2011, page 38) in which he stated he zeroed his house carbine at 10 yards -- "the average open distance in the typical home." This was done to avoid offset issues, and allow him to hit targets right where he places the red dot. My questions: Does anyone have any opposing opinions about this approach for an AR that is being used only as a home defense weapon? Is there a reason that a "non-trigger-pulling non-operator" who wants to use an AR-15 as a home defense weapon would need to follow the popular advice which advocates a much longer zero distance? What negative consequences would one encounter by choosing this 10 yard zero approach (for a home defense use carbine)?