Well I have to say I haven't really done the math but I can tell by the fact that I now have a LOT of weed sitting around despite the fact I lost that PowerPlant and only harvested approximatey 4 oz off my latest plant that I'm using MUCH less weed with this method. This grow came up short by about 8 oz........and I still have TONS of weed left over from the grow before that which is VERY unusual for the amount of ganja my hubby and I had been using.....up until I started using the caps regularly that is. :thumbsup: