I don't know what gap is but i know I shoot traditionaly. No sights just raise and shoot. I never pace off a distance I just shoot at what I think it is and do well at it. I find that I never really shoot past 23-25 yards. I think that is a far shot on occasion. I like the deer to run me over. HA.

I read this book by Byron Ferguson called "Become the Arrow" and have kind of developed a system of my own. I'd say its more gapstinctive.