I topped after the 3rd node (pulled the 4th off). I'll do this again when those new branches have 2 nodes each (pulling their 3rd). This is usually a perfect timeline to allow another full week of veg after the 2nd topping before flip to bloom. Another thing I like to do is spray just normal pHd water directly on the plant with a very fine mist spray bottle. Not a fogger but just one of those bottles youd use to do hair. I do this a few times a day and it really seems to help them maintain the extra humidity. I also have a hurricane fan that circulates air in the veg closet, so if I spray water its usually evaporated / blown off in 10-15 minutes (I've had no mold issues).
This plant is even more vigorous and productive in veg than the slurricane. I'm excited to see where it takes me.