I know breeders timeline for seeds is unrealistic,...

I've had autos go 2-4 weeks past the breeders estimate before and on the other hand my green crack was ready in less than 9 weeks from start to finish! You have to do what the plant and your instincts tell you to do, does it look ready, does it compare to other grows of same strain, do the trichomes look cloudy/amber when viewed as close as possible? So many different conditions and variables!