think you,ll prob start off with taking tops and end up taking whole plants if your plan comes together . not sure what numbers your playing with i know your target though .
did you run multiple strains ? try too stagger your harvest . what strains you running out of curiosity ?
I agree with everyone above.
Tops first, but I wouldn't expect the rest to ripen/bulk up too much. Another week, two at the absolute most I say.
Also, having different strains that finish in say 7, 8, 9 weeks respectively is a great idea to keep in mind.