For SammiN3
So effectively this arrangement laces up in the same hole as it would normally do, but it pulls the heel of the shoe tighter.
Instead of just tying the bow over the tongue after the last "normal" hole you make a loop by threading the lace over and down through one of the upper holes and then pass the lace on the other side under that loop then tie the laces as normal.
The guy in the shop said to experiment.
My shoes have 2 upper holes. He said to see which one works best. Sometimes people use one hole on one side and the other hole on the opposite side. Or even different holes on each foot.