EC error, buts are not fat! In the 5th week (35th day of flowering) where I usually reach the maximum EC (2.1), I watered with 2.3-2.4 EC.

you've got some WPM spots on those leaves... the circular white blotches in pic #4. i see 4 potential colonies, possibly a blurred 5th one in back right. I hope this is just camera angle and light being reflected oddly, but sure looks like white powdery mildew. Remove any bits of plant material with colonies. It's already spreading at this point, if i'm right, so it's just a ongoing battle you'll have and decide if it starts to ramp up whether to harvest early or not. don't go gung ho spraying the plant with weird shit, all that does is spread it down the stems with the runoff, lol. it starts slow but quickly escalates.. so amputate what you find, and try not to agitate it too much when you do. that'll just spread more spores around. by the time you can see a colony, it's producing and giving off spores (5-7 days after it digs in which is before you can see it with human eyes) your plants are relatively healthy, i don't know why someone is telling you it's a big issue. Some minor things to tweak, but nothing catastrophic. This late into flower comes with a certain amount of blemishes from senescence. if there were a n-tox you'd see clawing and glossy leaves. your leaves are standing out like good little soldiers for the most part. some minor tip burn, but that's not too big of a deal on its own as long as it doesn't progress. if in soilless/hydro context, 1-2-3 is a poor ratio to use. facts. non-biased research done by professionals does not agree with anecdotes of someone growing weed in their mom's garage or basement. it not as easy to quantify in soil, but for soilless/hydro 180-200ppm K and 60ppm P is all you need.. more is just being pissed away because that mass can't be foudn in the flower when analyzed with proper equipment. law of conservation of mass applies.. it doesn't manifest from nothing nor magically disappear after use. if not in the flower, it's in the leaves or the runoff. no mass is lost or gained in the universe.

You still have 2-3 weeks to go, be patient. All plants are individuals, never compare you plants to other peoples' plants, especially breeders' pictures where they can choose the best looking bud from hundreds of colas! Excess nitrogen will encourage leaf growth over flower growth....

Yours look fine . They still have time. All your white hairs will turn orange and swell. All the weight goes on in the last few weeks. The picture you refer to just looks more mature. Yours will be like that in a couple of weeks