Wow that's interesting. I get weird leaf anomalies if I run my usual 1.8 EC with jack's. Every environment is different though, and if that's what the ladies want for lunch you better serve that shit up
I tried the recipe at 3.6g jack's and 2.4g calcium nitrate, but it was too strong. The canopy didn't look healthy and tip burn was evident. My lights are very close to my canopy though. Jonny has low ceilings in his flower room. As a result my plants drink a lot more water than a flower room in which the lights were placed higher. The leaves are sweating at a much higher rate and as a result they drink much more water. I have 5 that are drinking daily now. 2 of which are now drinking twice per day. I haven't even entered the 4th week of flower yet. I'm going to have to upgrade to 10 gallon buckets after this cycle. Watering 2-3x/day is bush league shit man