It could easily be the strain... I really don't know what it is but the seeds came from a mutt of the first grow my buddy and I did... Talk about a shoestring learning the hardway experience. We are VERY happy with that though.

I've picked out the HPS system I am going to get so just waiting to get that now.

But after giving this issue much more thought I have another question. Using the MH lights through flowering, my plants would not stop growing vertically. I would get easily 18" to 2' more height. When I switch over to HPS will the same thing happen, or will they stop the veritcal growth and just bud?