at week 2-3 of flowering the plant is more or less done setting roots and reaching its potential (then it will more concentrate on flower production)
so you are a bit late, and as Dr Who said, it can put some stress on a flowering plant, next time do it a week before 12/12
with that said, Im sure one could do it carefully with success at this stages (day 10) as its most likely just half way in its stretch ?
fill the new bigger pot with fresh soil, until the smaller old pot will be at the same level, water/moist the soil and make a mark with the old pot
View attachment 3033911
and do the swap carefully
but up to you, maybe do it with half the plants now you have a few and see the different for yourself