Impressive DTOG, really impressive
About the nutrients I understand, normally I always suggest to be careful with Cal-Mag, this variety likes to be fed properly but maybe this time it was too much?? I can't really see the issue from last pics but could be that the soil that you use already had enough nuts?
Anyway as far as I see plants are happy and they are producing enormous amount of buds!
Thanks for the pictures, really much appreciated,