Budley - This is exactly the issue I'm dealing with; basically that vegged clones are ready to flower when their flowering clones are only halfway done. I do have 2 lights (a 1200w LED and a better 300w LED) so I've got 2 sides to my flowering room (since they're both on 12/12 anyway it doesn't matter dividing them) adjusting the lights accordingly. Still working out the kinks, I'm only 2 rounds into the perpetual.
I need to get some new strains though, my raspberry cough crop is cloned from a single pheno and not yielding all that well. The seed was about a year old when I germinated it so I think I need some fresh blood... making up my mind now on what to go with. I'm loving this AK48, Master Kush, Wonder Woman, Super Skunk feminized variety pack from Nirvana
https://www.nirvanashop.com/en/feminized-marijuana-seeds/915-hybrid-fem-mix.html