Makes sense that for dropshot hooks needs be shorter,and really shouldn't be on much of a tag end if at all.If you think about it,a short hook tucked tight to the main line actually prevents the fish from sucking the hook deep.The fishes lips contact the main line as it pulls the lure/ bait into its mouth,this could work much like a depth gauge,allowing the fish to be hooked in the mouth instead of the gut,in my humble opinion.