These plants have got a great foundation structure now.
That one that got chewed on by deer, just made it stronger!!
As for stretch outdoors, can vary hugely for photos.
Some can literally put on 3' or more (mainly satis),
and some just 6" (mainly indicas).
I don't like to think in terms of "double" or how many %,
because that can vary so much on the size it got to in veg.
(Grow a heavy indica 6' tall, it's still only going to put on another foot or more.)
(Grow the same indica 12/12 from seed, and it'll still get to 2' or so...)
More like just length of stretch it will put out.
Like Waira said, check out other journals of the same strain / same breeder.