plz Advise me for FORCING TO FLOWER.....????

Hello all i am seeing my ladies and i am wondering if its wise to start the 12./12 from now..??
THey are Ch9 Jack n Female....
One month old and propably 50cm long with the same long braches the down ones....
so if i force to flower now i will lose in yeld????
i will gain in quality n time???
what it will happen???
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they will gain some more height????and how much???
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thanx any advise will be thanxfull.....
cheers....

You can put them into flower any time you want. Generally the bigger they get the more product you will end up with. They will still probably grow another foot to 18 inches in flower.