What I do is I go up to about the 4th node and tie it to the side of the pot (container)... within 12-24hrs, it should stand it's self upright again... when you bend it, I would, and do, do it untill you feel enough resistance for comfort... you really don't want a 90 degree angle on the stem... don't worry about trying to bring it to low because as I mention earlier, it will at least double in height when flowering.
So, what I'd do is lst it before flower, and once it's grown to that height again... go about 4inches from the last tie-down site on the pot container and strap another one there so that your almost promoting the top of the plant to grow along the sides of the pot in a semicircle... but don't go to crazy with it... you still wanna leave room for the cola to form it's beautiful donkey bud!
I would leave it till harvest...
Weed is a headstrong plant that can take a beating like Brick Top said! They can take a lot... bbbuuuttt like humans, if you stress them enough, they arn't gonna do what you want them to, or at least they'll get stunned for a week, then continue.