I'm getting new sights for my PT1911, and I have a follow-on question about getting them zeroed in. Most people talk about zeroing them in at 25 or 50 yards, yet for defensive handgun purposes, it would seem to me that you would want to zero them in at a closer range, like 10-15 yards. From my CHL class and a lot that I read, most encounters occur at close range than 25 or 50 yards. I guess the reason might be that technically there isn't that much deviation between 15 and 25 yards? If you're using it as a range gun, most of the ranges near me have almost all their lanes at 50 feet. I've been curious about this and thought I'd ask.