I can never find traction in my heavy clay soil, tires spin out before I run out of power. That vid looks neat. 175 hp on a 2wd tractor just doesn't work so good. I have 145 or so hp, and spin at times with a 4-20 plow.
You tie the wire onto the coulter bracket. Lower is better, with dads old Y coulter brackets you just tied it onto the bracket right next to the coulter shaft. On the newer one arm brackets have to tie up front more.