Hey there 👋
The damage on the leaves has been done, but it shouldn’t affect anything in lithe long run. Especially if you’ve already corrected the issue.
I’ve got some short GSC currently too. I’m at week 8- and they are about 9 inches and about to flower. Once in flower tho they will stretch, and hopefully impress me with the sudden growth. Have patience, keep them happy and they will reward your efforts
Happy Growing 🌱