Hey!
Like the 8thchevron said.. there’s a study going around that’s actually quite interesting and has some pretty good facts from research and there’s basically no difference in the final product.
I personally haven’t tried it myself I’ve been flushing since I started growing. But I will be trying it myself soon.
To answer your question on when to start flushing.. roughly 10 days before harvest. When there’s about 80% cloudy and about 5-10% amber trichomes. That gives her time to reach a full cloudy and 20-30% amber. To me that’s a great combination.
Good luck and happy Growing.