140 AMAX @ 3,000 vs 3,100 = 3" drop and 3/4" drift at 500. Boot is untied, feet wet, knee hurts, hungry, outta water, wind shifted, looks like rain, are you on the right ridge? Where's that guy you spotted 2 hours ago? 1 hour of light left, headlamp battery low.....
See how much it matters now?
