Actually, I remember you talking about that strain in
your thread here called
'plants are still yellowing at 1800 tds wtf!':
https://www.icmag.com/ic/showthread.php?t=228988
The fact that you're feeding so low now confuses me since two months ago you claimed your plants would go from yellow to green in two hours after getting flooded with those ridiculously high levels of food. In your first post you even said you tried 1900ppm like that was somehow working better than 1800ppm.
Pictures mean a lot as you're certainly entitled to your opinion on what plant food works best for you but your opinion needs to be put into context. If you've been growing successfully for decades, I'm sure the pictures will show that. On the other hand, if you were just asking about the ideal pH range for hydro this past January, the pictures may reflect that someone still needs to dial-in their process and environment.