You transplanted at a good time. Not too overgrown. If you transplant too early, the soil falls apart in your hands.
I use cheap trashcans for pots. Drill holes in the bottom. Use them around the house when done growing. The point of CFL grows is to keep it cheap. I want to get two uses for anything I use to grow. That way, my only expense is the seeds, a small amount of fertilizer, and the electricity. Even the soil I use in my garden in the spring.
After you transplant, it might seem they stopped growing. They're doing all their growing underground. Water once and don't water for a week or so. Makes the roots grow all around the pot looking for water. Of course, water if they start drooping too much. Over-watering is the #1 rookie mistake.
Did you see my grow? I noticed I didn't photograph the big colas, just pictures of the secondary nuggets. In one picture, at the top right, you can make out my primo 10 inch (250mm ?) cola. I've already harvested some of the lower branches, and dried and jarred them; from that I figure I'll get about 100 grams total dry bud weight from the two plants.
Have you read the pros and cons of Miracle Gro? Did you still go with the soil that has 'nutes included?
I was thinking about vaping. When I got my vaper, I realized I needed a grinder. Instead of waiting a couple of weeks for one to come in the mail, I instead went to my local, too expensive, pipe shop. Go with the metal grinders, the plastic ones are crap.