Your going to have to train your plants. I recommend LSTing. You'll get massive yeilds using this techique along with what others have said. Personally I think you'll have to upgrade your genetics as well. Neither one of the strains you listed are heavy yeilders. Go for some Chronic or Bubblegum from Serious Seeds. You'll have to have mix up all the right things now to get the soil teeming with all the good nutrients and microbes. Also look into Advanced Nutrients organic line to get the most out of your plants.

StinkyAttic - could you tell me more about this procedure you speak of?

Happy Toking :rasta: