High Bro!
Always happy to help.
And for the streching it is 100% natural and normal for a plant to do this during pre flowering.
When pre flowering the plants will strech for 2-3 weeks.
When you grow a Indica dominant strain you need to expect her to become 2 times bigger then just before the pre flowering period.
And when you grow a Sativa dominant strain you need to expect her to become 3 times bigger then just before the pre flowering period.
And for you growing a almost 50/50% hybrid it will be somewhere between 2 and 3 times.
Look at the website from the breeder or the page from this strain on this website to see how much strech you can expect in the pre flowering phase.