yo yts farmer, everything that doesnt touch the tube is fine.... that intense light gives big buds
according to height: the plants should reach up till the middle of the upper plant so you get a thick vert canopy with enough side branching... i now tried to reach the perfect height quite often but this time it looks like i got it
for more trials you may search for "vertical coco", its not easy to find the right point to kick them into flower but definitely an advance are indica dom strains
its FD24 and its looking good, the em dog is like the perfect strain for vertical, little leaves and bud sites all over the plant...
on the lemon skunk i did some serious defoliation as a lot of big leaves blocked all the bud sites, also not good for air circulation... will make some tea from those