Awesome job, regenerating a stump sometimes doesn't work but your killing it.
An option to what your doing is to take clones in flower and root them. You'll get the same results in less time. I use monster clones a lot with floater screens.
This will branch like no other plant you've dealt with so take that into consideration when you flip. She's gonna get big.
Also I would up pot this to at least the next size up. Give it new medium before it enters flower. As is will work but your plant will love the new medium and reward ya well.