Pre Flowers are normal.
It just shows that it's ready to flower as far as maturity goes.
But if you want a good yield veg it for a while longer.
It will double in hieght when you flower it. So keep that in mind.
Good Strain by the way.
If your smart. You would clone t and keep a mother of it.
If you don't you will kick yourself after.
It's that good.
One of the best strains on earth at the time.