Interesting to me is that this morning shooting from concealed AIWB (Dark Star!) I was hitting 90% in the 2.35 second area on a VERTICAL 3x5 but only about 30% at that same speed on a horizontal 3x5. The most combat experienced pistol fighting dude I have ever known thinks the vertical 3x5 makes more sense than horizontal. I agree largely because my hits are better on a vertical 3x5.