How much Longer?

First let me say that without the information and assistance given to me by the organization I would never have been able to bring this plant to fruition....THANK YOU!!!!
Now I need help with determining when to harvest. First the details:
White Widow / 400w HPS / Has been flowering for 9 weeks / Have been flushing with ph adjusted water for 1 week.
Please review the photos and help me determine approximately how much longer to harvest. I have to leave this plant for 2 weeks before I return. Do you think that it would be better to harvest now or wait 2 weeks. If I wait will I miss the peak?
Any advice you can provide will be appreciated.

You have way more than 2 weeks left. IMO you are about half way through Flower. You're going to need a 2x4 to prop up that horizontal cola at the end.

This looks like a Sativa dom, and they can go 16-18 weeks. Only way to really tell is look at the trikes.

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