Skinny Pot/Weed?

Weather outside is going above freezing, so humidity should go up and hopefully so will the plant. If I get the growth I think I will this week, I will make a decision on topping. March 3rd plant is pretty branchy. Not sure i'm going to top it. This is my first Photoperiod and first time growing Durban Poison. I am leaning towards not topping so I can see how it grows. Durban Poison seems to be growing wide and is branching.