Clone questions / LSTing late + pics

After unsuccessfully getting photos up in the grow log I decided to put the post here - been growing clones for about 1 month, but they seem pretty puny & I can't figure out why!? I've been giving them plenty of superthrive & nitrogen to get them dark green & growing up but it doesn;t seem to be working as fast as I hoped- anybody got any ideas on jump starting some of my yellower clones?
Also got some late LSTing I have begun, the plants are surviving it, so does that mean it's ok? I don't have another room to flower so that's why I'm ok with stressing & stunting the bigger plant, will that affect my yield for the worse or better?
Thanks to all who read this & thanks even more if you reply!
Peace. :rastasmoke:

The same 2 weeks later, you can see how some clones are a lot taller & more developed than others. I've been giving them all almost exactly the same nutes/ water regime, so does anybody know how this is happening, or how I can get the stumpy ones to catch up?
Thanx again