That’s the main problem I run into when growing autos on a flood and drain table. If your plants start flowering at different times you will possibly run into problems. I just finished a 4x2 auto flood and drain grow and 3 of the 8 ILGM Northern Lights started to flower about 20 days after the other 5 did. That left me with a very uneven canopy, that I could not correct by boosting up the individual plants like I do with my coco grows. I ended up pulling everything down with a scrog net but the 3 late flowering plants grew so much bigger. I still ended up with a fantastic crop (22 ounces), but the canopy wasn’t very pretty or level.