Are you running 2 sets of 2 tubs each, which is 4 tubs total?

Are you running the Red Compact fluorescents mixed evenly throughout the growing area, or are you putting the Red CFL's over the vegging #2's tubs?

Also do you have some king of divider between the #1's area and the #2's area?

Mylar and other curtains would not contain the Far Red as much as the Red, but it would help separate the two areas spectrally.

You can successfully run a vegging and a flowering area with minimul light dividers/divission/separation, but the more the spectrums are separated the better. If you're running the same timing schedule in both, then separating the spectrums is the key to separating the results, since you can have vegging under one PAD spectrum and Flowering under another PAD spectrum while using the same scheduling timers to run both.
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It looks like the first batch (#1's) are at the popcorn stage in certain ways to me. One thing to look for is the white hairs don't fill into the nice full fuzzy balls found on normal flowering formations. Another sign could be the early formation of trichomes on the leaf structures.

The main thing to watch for is the slowing of the growth rate, moreso than other typical signs of excess darkness length, with the PAD mix type you're using.

Take Care, Sal.