very nice looking plant. very uniform and stout. my only concern is the miracle grow moisture control. sounds liek you are doing a good job of watering when she needs it, many tend to over-water with the moisture control and not enough air will get to the roots. IME MG moisture control will hold water and stay very soggy (i.e. wet sponge) for long period of time. MJ plants don't like this.

But as I said, whatever you are doing seems to be working quite well. Just keep in mind not to over-water and you'll be fine!