the problem is, with growing that 2Oz of popcorn below you lose the energy being directed to the main cola, taking the potential 4Oz top away, you'll get 2Oz of leafy popcorn and 2Oz leafy main cola........and yes they will be leafy because of the extra photosynthesis needed to keep the popcorn buds alive.
therefor, to have a dence 4Oz main cola is more potent (and logical..) than 2Oz of popcorn+maincola.
