Howdy. Larimar is correct that they're not technically ready yet and there is time for her to swell and ripen. From the pictures I'd estimate 1-1.5 weeks before the "optimal" amount of cloudy trichomes are there. That being said, your high is your personal preference. If you find you really liked that sample and it works for you, maybe this is the mark where you apply your floralicious + and/or KoolBloom to ripen up in the final week to two weeks. I don't know how much excess nutrients you have in the soil, but nitrogen is still heavy by the looks of it, so the flush for purity may take some time and you'll know when it's time to chop (after she starts to turn in and her color fades).
If you liked this high, I'm assuming you like Sativas, as this may have been a little racier then critical purple kush is supposed to be. If we chop an indica or indica Dom before optimal harvest, her affects will be more Sativa like. If we let a Sativa go past it's optimal harvest date, she will develop a more narcotic high and act more as an indica. What I'm getting at! is if you like that high, maybe consider a more Sativa heavy strain next time so you can bring her to optimal harvest and get that same high you enjoy👍. That was unsolicited advice! Please ignore if you already know!
Anywho, if this sample you liked was already a week old, I'd personally go ahead and start flushing her for the chop (w/ your Koolbloom and/or floralicious +). Cheers and hope this helped. Happy flush and harvest!😀