+rep sativa scrog help

I set my screen at approx 36 inches in height about two feet from the top of pots.
These are very slow to flowering not showing bud formations for many weeks. They are starting to come around but are now much past the screen.

Do you usually keep it trained under the screen until buds are actually forming. I did for the first two weeks of flowering and then let the bud sites through to create a full canopy.

now that they are growing approx 12" over my screen is the best practice to bend them over like a super crop or to tie them down to the screen more LST style
sorry for the horrible spelling and grammer in a rush before class tonight.

keep tucking them under until you have filled out the screen you want the main branches to grow parallel to the light

irieie is correct

When I grow sativa I give them a 24-36 hours of darkness and it helps jumpstart the flowering process. My 1st patch took over 4 weeks to how bud formations and then my 2nd batch I gave them the darkness and now i get bud formation at week 2

how long did you let them go for on the first batch teh four week ones that about what i'm seeing now. Should I expect at least 8 more weeks?