Switching to 12/12, but one question first

I've been growing my plant for a while now. It's just a bagseed, nothing special, and it could even turn out male (though I hope not). In any case, I don't know how long exactly I've been growing it for but I know it's been in veg for at least 5 weeks. It's only about 8" tall, though I think I stunted it's growth temporarily by leaving it in the smaller pot for too long. When it was about 6" tall about a week and a half ago, I FIM'd the plant. Well, half FIM'd and half topped... I got part of one leaf and part of the main stalk - the result was 5 new tops. I guess you could say I FIMmed the FIM.

I switched to a bigger pot on Tuesday or Wednesday (see post here: https://www.rollitup.org/newbie-central/566133-pot-too-small.html) and she's as healthy as ever. She's also grown at least an inch and a half in two days since the switch. The new tops of the plant after the FIM, however, are still rather small, see pics below.

My question for the experienced growers is, should I wait another week before switching to 12/12 to allow these stalks some more time to vegetate? Or, if I switch to 12/12 now will they grow enough in the initial flowering stretch period that I shouldn't worry about it?

I usually wait roughly two weeks after fimming before flipping the schedule. Sometimes more and thats in hydro where they grow a little faster. The longerthey veg the bigger itll get (3 to almost 5 times bigger than in veg).

Thanks for the quick feedback. I'll wait it out and see how she grows. She looks way darker green in these pics than she actually is, btw.