It is doable just geta good heavy yield strain such a chem dawg #4 or GDP. Veg it for 2 and a half months, top it every 20 days strech it over and over until you have a 2 and a half in diameter plant (umbrella shape) then scrog it, and put the light low enough but not to close that it will burn your plant then in 8-9 weeks you will have at least a pound. Done it myself. =)