You've already gone this far, might as well keep going.... I mean, you can harvest whatever is available on week 9-12....up to you.... What I would do is bend and tie as much as necessary to create more of a canopy. This way you can bring your lights in as close as possible. You need to capture all the lumens you can, as close as you can.... Good luck, I'm sure you'll still be satisfied with your end result and learn from the entire grow....

Have fun!!!

CGI::::::