Hey fdd2blk, hope you're well
I realized it may be difficult to guess the right ETD for the plants when taking pictures using the sun as light so I'm posting some pictures of my Big Blue female I took last night as the sun was setting using flash to get a better idea of what stage the plants are in. You mentioned 3-4 weeks, perhaps closer to 4 for the pictures of the same Big Blue plant without flash so let me know if these flash pictures change your guesstimate at all
Thank you so much for this thread, I understand it must take a lot of your time