Switch to Bloom or wait?

hello there, this is my first time growing, so not sure about certain things, I have 3 autoflowers, 2 northern lights by Nirvana(41 days-38days) 1 CBD Crack by fastbuds (32 days) the younger NL is smaller and flowered before the older one, the older one just showed signs of pistols n it's way bigger than NL 2.

--judging from pics you think it's time to switch from AN sansi grow to bloom now or wait a bit longer, also it's difficult to see if the stretching stopped due to all LST
--should I flush before switching to Bloom?
--do you think I should keep adjusting LST at this point, or remove them all together, I still see some new growths coming from branches.
top left NL 38 days old
top right NL 41 days old
bottom CBD crack 32 days old

I would reaaaally appreciate any insights folks.

I start bloom feed 7-10 days from the first pistol.
Reckon you made most of the stretch on each of them and they are all showing pistols .
Your call but IMO I'd start the bloom feed schedule.
GL

JimmyNuggs said:

I start bloom feed 7-10 days from the first pistol.
Reckon you made most of the stretch on each of them and they are all showing pistols .
Your call but IMO I'd start the bloom feed schedule.
GL

Click to expand...

thanks, I'll do that, it's been more than 10 days for NL 2, I'll hold on to grow for the top right, as it just started showing pistols, any idea regarding if I should keep the LST? n if I should flush?

No need to flush to change nutes (although don't cut out N too quickly, just last 2-3 weeks!)
LST will need to be checked, as the stretch continues, been known to need it twice a day! Keep it growing how you want so keep at it.. (Maybe look into mainlining as its front loaded: a few weeks of lst to start, a couple/few tops then done till harvest.
GL

JimmyNuggs said:

No need to flush to change nutes (although don't cut out N too quickly, just last 2-3 weeks!)
LST will need to be checked, as the stretch continues, been known to need it twice a day! Keep it growing how you want so keep at it.. (Maybe look into mainlining as its front loaded: a few weeks of lst to start, a couple/few tops then done till harvest.
GL

Click to expand...

thanks a lot I did just that, excluding the topping as it's an autoflower, n there has been lots of yellowing, n finding crusty lower leaves, so to avoid any stress, I leave the 4x4 tent always open in a small room, so there isn't much air circulating and it's reaching 30 degrees c, I might put the tent in a bigger room