A single bud will try and become many branches, but you don't have to keep them all. You get your cutters out and make it what you want it to be. If that is a single shoot, it will be as big as a single shoot should be.
I did have a nightmare once. A Black Domina that took literally years. It looked like it was back in veg properly after many months, but the slightest excuse and it was heading into flower. You could carry it from room to room and it would be off again. It needed 24/7 light. Cuttings would be turning straight away, and might not fully reveg before they were flowered. But christ was is fast. Lovely to. So I persisted past the 6 year mark with it. Yes.. 6 years. It was quite settled after about 2 years, but never really did get deep into veg. Lent it a friend who lost it in a few months. Gutted.