what day did they show sex/start to flower? seymours were around day 18 but mine went to day 25 before they started to show sex. i think mine are at around day 85 2 of my 3 are now chopped. If you have time to spare when you are ready for harvest then I would suggest harvesting the top fattest buds off each branch and allowing the others another 10-14 days to fatten up and mature. It was definitely worth it for my grow and I believe has added another ounce to my yield. So thats 60 days of flowering for mine. Your buds however look very immature, barely more than a cluster of pistils yet. What bloom nutrients are you using, what are your pH and EC levels like? Have you hit it with pk13/14 yet? I think your wish for another 35 days of flower will prob come true as to my eye it has at least 4-5 weeks of flowering left in it. Perhaps your particular girl is simply a slow starter. Its worth sharing some more info about your grow though as its likely to help you increase your yield. You are bathing that plant in a shitload of LED goodness, you really want to be sure you are getting the best bang for your buck.
How do the roots look? What size airpump are you using to aerate the bucket? Are you using rhizotonic or similar to stimulate the roots. How much feed is she drinking per day? How often are you changing your nutrients out? I found with my buckets a few times at diff points in the grow that things would stall unless i dumped the bucket completely and started with a fresh mix. Lovely big plant though mate , she is going to yield great for you im sure!