When flipping to flower some cultivars start stretching a lot, some sativas can stretch 300-400% of the height from the moment of flipping. Hybrids often double in size.
Once they stop stretching then they really start flowering. It’s normal for some cultivars, it’s genetic, nothing to worry about.
I’d take away most or all the fan leaves to let light through to the lower budsites.
You can make tea with them and then topdress with the pulp. 