Hey JT those ladies are looking pretty fine brother. Don't too caught up in comparing with other grows. As you've probably noticed, it can drive one a little batty. The most important thing is that they are healthy and looking at them they seem to be just that.
The big pot may have something to do with it, but I can't say for sure. I haven't done enough experimenting quite yet. I do know that on my first grow I used quite a large pot and they also seemed a bit behind another grower's who had the same strain. Again, I don't know for sure but it is definitely something that I had thought about.
Like I said before, don't worry about other grows. Your girls look healthy and I'm they'll probably start stretching soon.:gthumb::Sharing One:
Disclaimer: I'm by no means an expert. Just relating my own experience to maybe ease a fellow growers mind a bit:Aloha: