Gee, a shame you kinda got hijacked on your forum...from issue to transplanting...
Lets get back to the original issue. The spots on the leaves are representative of a few issues...Calcium...calcium deficiency looks evident
Nutrient burn
Then there is PH
and here is Phosphorous
Can we determine the cause, not really, not without process of elimination. Aquaman hit the nail on the head - defoliate those lower fans...make some air
All this over / under watering....the bottom line, plants DROWN from not enough OXYGEN in the soil - we really cannot overwater, we can water too often. If the soil compacts, the roots starve for Oxygen. That can cause every single issue you are facing /might be facing.
It is NOT worth it to spend so much energy on leaves that low...on average, the first 2 nodes do not even count...you cannot say your plant has issues if the problem is only those at those areas.
So, to aerate the soil, and hopefully not stress the plant (yeah, auto are more sensitive than photos but not prima donna's that most make them out to be...). I train, top, fim and transplant my auto all the time. Transplanting can actually extend the flower period...I have had auto that I went from 1 to 2 to 3 to 45 gal pot and extended life cycle to 23 weeks, harvesting over 3 oz GSCookie. But back to air. I use a spike (like a pencil, chopstick, garden staples (I use the to train / hold down branches during LST...they are the best) and poke holes...DO NOT DRINK THE OCEAN...meaning do not so it all at 1 time...a few every other day. We tend out plants can should be able to recognize healthy from unhealthy. I do NOTHING to unhealthy plants..
Are you using cal/mag? Foliar spray? I crush eggs, blenderize them to a powder, add Organic Apple Cider vinegar, steep for a week with air, 1 tsp per gal water - plants absorb nutrients / elements in 1 day as compared to soil uptake and Ph is usually not an issue unless you are like over 9 or under 3...I often add 1/2 tsp epson salts. All this then goes into my little sprayer and at lights off or just at lights on SPRAY
The MAJORITY of your plants LOOK EXCELLENT...if it ain't broke, don't fix it. Just defoliate the lower branches and maybe start poking some holes in the root ball / soil