I would mabey try scroging the plants. Some how tie a plastic net, chicken wire something like that, about a foot below your light verticly so the plant cant get threw them. BUT the plants normal tendancey is to grow toward the light. So the plant will pop up threw the net and all you do is push it back down under the net. Im not sure how big your grow space is but the plants will start to run along the net. You may need to do some thingin inside your plants at some point but not totaly nessisarie and thats later on. You can do that and the plants will still grow, just not up.Keep them on your normal veg lite sycle and when your ready to flower switch to 12-12 lite sched. keep pushing the veg growth down when it rises up threw the net untill you see bud start to form. Dont push that down let it grow UP UP UP (make sure you have enough room between the lite and your screen so your buds dont burn) Eventually all your left with is a forest of little BUDS!!! YES!!!!!! Its worth a try!

Hope all works out!! Good luck! *Growgood*