what they're trying to say is that its way to difficult to estimate the yield of any plant. there are so many variables that contribute to the yield, like the grow method...ie soil or hydro, the types of nutes, the lighting u have, the size of ur grow space, ur experience as a grower, what type of other techniques u use, like topping or lst...theres too many things to look at...just based on what i read on here, on average people get 1-3 ounces on 1 plant. some get more...some get less...its just a guessed average. the waiting game is the worst part...i know...but as long as u do ur research and treat ur ladies real well...u should do ok. and remember...the more u know-the more you'll grow.