Exotic fruity grow - defying all logic with 11 Autos in a 5x5 under a Lumatek ZEUS 600W PRO!

Lights still at 75%. Every time i turn it up to 100% plants become droopy (check pictures). Tried even with the height further up. Same results. Also got what looks like light burn and yellowing on some of them. I believe its the lights as opposed to calcium or N deficiency cause i upped the doses and nothing changed. It just keeps getting worse the longer i keep them exposed to 100% lights. Still my second grow under these monster lights and cant figure out when to switch them to 100%. Plants seem to love the 75% range at this moment. i like my ph during flowering closer to 6.3 so i upped the ph. Lovely growth from all of them. Tied the 2 daiquiri limes to help spread out the light to lower branches since i gave up on the net. Going on a trip next week for a couple of days. Gonna leave my gf in charge, lets hope all will go well!