Whats to late

I guess whats to late for a harvest, I mean lets say you have a strain that says 50 to 55 days. and at 53 days its 60% milky good allround,,, so you wait 2 weeks longer or4 weeks or 6 weeks I guess is there a point when your losing by waiting too long

its all on prefrences you want if you let the trichnomes get amber u will have more of a body high...if they are white u will have more energetic high...