Chris' dress shirt collar = 1.875" vertical length-back of neck span I am the same height as JFK = 6' 1/2" = 72.5inches Sitting down(measured by my wife) from my rear end up to the top of my dress shirt collar is 28 7/8inches = 28.875" 28.875" - 1.875"(collar length) = 27" 27" = rear end to bottom of shirt collar. 27" - 4"(Magic Bullet Program) = 23" Chris' top of collar = 28.875" - 5.75" (shirt bullet hole location) = 23.125" Same Location. Close enough for goobermint work. Bennett wa