Hello there, they are looking good don't give up. If you can veg a little longer and top the plant several times, or lots of super cropping and training, you should be able to keep them low and increase your yield. One thing I would be a little concerned with is if your automatic watering system might be keeping your soil a little too moist and possibly stunting the growth. It seems like the veg times that you are mentioning should be giving you larger plants in the given periods. Try to make sure the pots are not constantly wet and heavy. It is good for them to dry out a bit. Also a friend gave me a Blueberry plant once that did not grow very much at all until I transplanted it because he packed the dirt too much on her, they don't like that at all- it is definitely another thing to avoid. Are they getting enough nutrient? Also I would be very cautious of taking pictures with your flash when your flowering lamp is off, it could cause hermaphroditism. You are doing good so it can only get better from here... Those are all the tips i have that may help you at the moment.
Take care and good luck!
Dr FG