Should I be flushing ???

I have an auto amnesia at around 80 days
Pistols are 70% brown
Trichomes look around 60% ish cloudy
I'm not expecting too much bud as it's a bit of an expermexpe and first grow

No a bit late now, just harvest if you prefer the trichomes cloudy, if not let them turn amber (if that is your preference).Flushing now wont really do much.
Happy harvest!
Hope this helps.