When To Flower? Please Help

Hey!

I just put these 3 clones into soil a few days ago and they seem to be taking very well. The two that look worse seem to be doing just fine though.. and they're showing a good amount of new growth.

The box that the picture shows them in is where they'll have to spend the rest of their lives.. so as you can see the space is limited. Theres about 2 feet of vertical space and the sides are about 1 ft x 1 ft.

OK, so my question is..

Should I:
Keep all 3 clones and flower them ASAP in sort of a sea of green set up.
-or-
Let them grow for a little longer and transfer the best looking plant to a larger pot. Then use low stress training and make it grow around the edge of the pot, then upwards in the middle after one revolution around the rim.

Also,
-Which method would likely yield the most?
-When should I start 12/12 so that flowering is done before they reach the light? (about 22")

Thanks a lot,
ANY input would be GREATLY appreciated.

keep all 3 and flower at 6 - 8".

if you don't plan to clone, flower now.

you need 1 square foot per plant even when there short i suggest you make the box bigger but your yeild will be about the same if your using CFL's or flouros the difference will be the time frame you'll get the smoke sooner flowering all 3 around 10'' if you have 2 feet of space under the lights clones can double in size depending on the strain sativas will double if not more and indica's will double in size..plus depending on your lights you need an added 2-4 inches for cfl's so you dont burn your leaves but you'll want them as close as possible. I personally would flower them at 10 inches and if they start to get tall take some twist ties like from bread loafs and wrap it loosly around the branches and bend them till there facing the ground ....easy though dont break them bend them littl by little....or top them and bend them that will keep them shorter.... BONZI STYLE like this

u can flower as soon as ur plants have a sufficient root system!!!!
also it depends on how tall u want ur plants if height is a problem(expect ur plants to double-even tripple in size in the 12/12 period) i would personaly flower when u have at least 12-16inches of hight and a fiew internodes already!!
hope this helps

pulled that one down from eighteen inches down to 12..the main problem you'll have is the extreme lack of space.