The twins are exactly that. Both 14 inches. Both have about 14 tops. They are the slowest plant to pop pistols- and will most likely be the plants that live the longest in this cycle.
The stem structure is so massive! These Girls have excellent HIPS! The flowers are ging well, nice looking top frost pruction, bet they smell fantastic!
Those plants look great and healthy; the ladies with 3 or 4 more weeks of veg look close to the others. It looks like a well balanced tent; you will know about it in week 3 of the flower. :)