2 Days in Flower / Back to veg = Shock?

Quick question... ive changed my mind how i want to allocate my rooms, and want to veg these guys a lot longer, will i shock them if i put them back to 18/6 after being in 12/12 for 2 days?

I'd doubt it would make any difference so early into flower. I could be wrong though, I'd chance it. I'm sure an advanced grower will give you an answer.

you will probably have to go to 24 hr light for a few days to revert them sometimes it isnt enough to go 18 6 . and it does stress them out a little and cause stretch .. at least thats what the growing elite marijuana guide states