SOG = Sea of Green (many plants with little sidegrowth)
ScROG = Screen of Green (evening budsites by weaving/attaching through some type of screen)

You were right to LST them with your little bit of light - you'll do fine. They look good for only two weeks into flowering. Have fun and good luck with the back pain!

edit: There is so much beginner information on this forum I was (hypothetically) able to complete my first grow without ever posting a word. To know if you're on the right track, read through the grow logs to compare yours to others at a similar age.