Don't get me lying about the trichomes on lower buds. But your girls looks to have abit to go. Unless I'm confused on what's what. I see mention flush? The glance I see doesn't look ready? Now I got bad eyes, and I don't live next door, but I woodn't go just by what they say in flowering. When your talking about as short as the life span of auto's, 5-7 days is alot. And I've never grown a plant that finished in vendors said time,,, least I haven't. Alot of the recommended flowering time is for usable product, but it's prime, needing 20-30% longer. I'm not familiar with autos to much myself. But I think the only thing I could truly bring to the plate wood be, when your dealing with flowering time, anything that helps pack on weight is a good thing. Alot of this goes back to knowing the strain, what she eats, and how long she flowers, but that last couple weeks is it's 'prime' development time, weight and quality. I found just about every plant I ever harvested, I always questioned what if she went another week? It's nice for them to be all they can be.
Most here go by the tric's stage for the harvest, cloudy/amber. Look into the center of buds for this, the outside is usually the young flower stacking up on the buds and some are just sunburnt.. Some plant's trics don't seem to ever amber out. I like to look at pistil development, overall on all the main colas. If they are in the ballpark, of say 7-8 weeks on a non autoflowering strain, they start to turn brown, then I'm getting close. When the are like 1/2 to 2/3 brownish, you should be seeing just about all cloudy trichomes, under a scope. When the pistils are 3/4 brown,it's generally harvest time. So,, just my 2 cents, I look at the flower development over vendors timeframe. To me cutting back on fertilizer 2+ weeks early might they might have had a good use for that last dose? I'm just looking at the pic which makes it hard to tell, but are the buds 'solid'? Or do they need acouple plus weeks? If you think so, I'd juice mine that one last time with some of that high Phous fox farm powders. What Beastie Bloom? Hey it's a great product, alittle goes along ways, but if you have to re-up some of that stuff in the future, check into the dry kool bloom by GH. Been working for me and alot easier on the pocketbook. Kind of all in one of what I call the 'juice' powders. 2-45-28. Who needs nitrogen in these stages?
GL and Keepem Green