The plants are praying (leaves angled upward) and there is some leaf curl going on. It's most likely from having the light so close and the nutrients strong to balance the light intensity, but I have a lot of tops so I'm pushing the intensity early. Lights at end of the week are about 18 inches from the canopy average.
I've done light defoliation as necessary to keep the light penetration good in the mid-bush. The bottom of the bush is pruned clean.