Started to LST on Day 21 looking really good, and I like the leaf structure on this plant. Long lobes with deep ridges of an interesting shape. Pistols are already getting thick in the nodes. Hopefully lower branches still have time to grow out! Looks good so far!
Looks like at week two it was perfect, so I deduce that there was root problems where the roots did not develop properly for some reason and she never recovered. The root structure will determine the plant structure. You should give the eazy pyramid a go, it automatically gives the best possible root structure.