Plants taking to the technique very well imo. Particularly the back right one, which has created a almost perfect dome shape.
I did miss a watering and they didn't like that atall. As I usually wait for the soil to be dry before I water again, so if I miss a watering, they get extremely dry. All the leaves dropped down completely vertical, I thought it was all over, but they bounced straight back with the next watering. 🙌
The plant has now been topped twice, once to creat the initial + shape, and again to split each stem of the + into 2. So each plant now has 8 main stems.