Knowm,,,,, If I may????
Hairboy! You should put them through the vegitation cycle first! After they have established roots,cuttings I assume? Which should be around 10 days if given the care they should get! No less than 18 hours of light,24 hours of flourescent light could save ya a bit on electricity,as well as give the clones a better chance to take off! Once you have established a root system on all the cuttings.Veg them till they are about 10-12 inches in height.Turn the light's back to 12-12,and go from there! You should be able to have them sexed,in 1-2 weeks!You can do this with the flo light,too! If you got the room,and they are not in a box and such!I've just never tried to sex or flower anything that has no roots!Hope it put cha on the right track!

Ga Grown