Re the late day watering: Maybe that's what turned her into a hermie. I was having a hard time figuring out why she changed on you, but that could explain it. Anyway, onward --
Re Harvesting:
First, I'm assuming that your resin is nice and cloudy. Best to harvest when the resin is ready vs. worrying about the nanners. You can pick out seeds but you can't produce more resin after curing.
As a rule: When we decide it is time nearly time to harvest, we have to do more than just decide. We have to get the plant ready. Normally, the process takes 2 weeks (which I'm assuming you know because you flushed on 7/11, but I'm writing for the benefit of future readers, too). And this is why you'll hear me say that I don't flush "right before harvest". It normally needs to be done about 14 days before harvest. You're going to "push" yours a bit though, which is better than ignoring it altogether.
Understanding why we flush may help. Flushing removes the nutrients in the growing medium, and without nutes the plant will start consuming its stored food reserves. We don't want those reserves (sugars, starches, etc) in our smoke because the end result will be harsh crap that doesn't burn well. So, the plant needs a bit of time to use up the reserves.
In your case, since you're doing a "flush push," you can test to see if the plant is "clean" even if the leaves haven't yellowed. Break off a fan leaf, then cut into the stem and taste the fluid at the cut. It should taste "clean" like water, not bitter or nasty. If it doesn't taste clean, you need to flush again.
I always do a 2-step flush. The first watering dissolves the crap that needs to be dissolved. I wait 10 minutes or so, then I soak it again. The 2nd soaking does the actual flushing. You aren't ready to harvest until you get a clean taste test of the fluid in the stem.
Since you JUST flushed, you'll have to do the taste test in the morning, at least an hour after lights on.
When you're sure that the plant is "clean", it's time to let things get dry. I like to let soil get REALLY dry because resin production increases dramatically the dryer the plant and air is. (It's the dry air that causes it, which you can't have with wet growing medium) How long it takes your soil to dry will be dependent on the humidity in the room.
When you decide that your soil is dry, then you want to let the plant go dark for 24 hours (give or take). This allows for increased resin production and it also allows any of the "Stuff" in the plant to drain back down to the roots. (Reserves drain to the roots during the night, and rise back up through the plant in the daytime). This is also why you want to do the actual harvest in the dark (a small light to see by is okay. Just don't let the plant think it is sun-up!)
Cut the plant just above the soil line and leave it whole, or pull the whole thing out by the root ball, and (again) leave the plant intact. Hang it up. Trim it. Let it dry and cure.