you know, when I first started growing marijuana, there was no internet and nobody was buying or growing the latest strains. Marijuana was simply weed, no fancy strain names. What makes a plant a heavy producer is the way in which it is grown and some other key factors. Lots of water, lots of sunshine, Nice fluffy amended soil, and lots of proper nutrients, also a long vegging time helps to. Almost any strain can produce a pound or more under proper conditions, My point being strain does play a role in finding a heavy producer, but it really does come down to how it is grown. Most people prefer quality over quantity, like myself. Instead of looking for simply a heavy producing strain or commercial strain, try looking for something of very high quality or something of amazing flavor.