I used to think that was BS, about  pulling  out of the hole at idle.. until I bought my first one 10 years ago.  I still  scratch my head  on how it's able to do it!

   I still  snicker to myself  when I remember as a kid trying to  get a  JD 8640  rolling  in  high range..  next to impossible w/o killing the engine.  And this was just to road it without  anything attached.