there is no right or wrong.
some use it initially as a kick in, while oils with long esters like boldenone build up and start to take effect.
there are those who use it at the end to give that extra final touch, as well as this practice is used by those who compete and therefore the adjustments are made before going on stage.
you can also use it in the middle or whenever you want.
many different opinions, none has the absolute truth.
there is no right or wrong.
your body, your decision