Switching to Flower VPD

So when do you guys switch to flower VPD on the usual 70 day autoflower? I usually wait for the stretch to end but was curious what others think.
The gal will tell u when she gets her yellow/white pistil puffs. Then start easing your settings for your chart like this one. Thats how i do it.
I use this one, and I am sure i got it on here.

vpd tempreture (1).PNG
 
The gal will tell u when she gets her yellow/white pistil puffs. Then start easing your settings for your chart like this one. Thats how i do it.
I use this one, and I am sure i got it on here.

View attachment 1625011
Yeah she has her white pistol puffs now, I use the pulse grow chart with -2 leaf temperature difference (checked with ir temp gun) so I’ve been on that for 3 days now. Was interested to see how everyone else goes about it for the late veg/early flower transition. Thanks bad finger!
 
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