When is good to flower after topping?

First what for to cut what you already invested to grow ??? Secondly, what is target, for other branches to catch up and to have even canopy ? Then this is your coundown, most prob you will be forced to do many topping till you reach it and not one or two weeks. A bit more. Such techniques are for clones, comercial grows, in all other cases you loose time or mass even. I would not give more than 7 -8 days after, if your plants are developing nice and healthy, flower stretch will compensate rest. Shoots will be formed and growing by day 7-8 normally since topping, so perfect time.

Une semaine minimum, deux c'est nickel. 🤔