She seemed to of had a growth spurt and is now the same height almost as her roomies, pistils forming all over bus sites, only a few bus sites but hopefully they produce some large colas
Keep in mind some ambering can occur from physical damage also.. if you’re often touching and inspecting that top cola - that could be the reason for the amber color up there.
You could - or just leave it and let it go - separate the main cola from the rest of the plant when you harvest and smoke that when you crave a chill more sedate high... the more Amber cola will have more CBN and marginally less thc.
@Mr_smallGrow, yeah it started off pretty burnt, putting it down to bad batch of coco. Its new leaves are perfectly healthy hopefully it continues that way