overgrow has been down for a while now. Luckily a bunch of people saved info off it and it is being re-posted here. you CAN find some of it.

As for colas all being of large and uniform size... okay, there's a limit to how much bud mass a single plant with x amount of light and y volume of soil and z levels of water and fertilizer with a certain set of genetics can produce under optimal conditions.

If you want to maximize your cola size, you have to maximize light, give your plant plenty of space (soil volume) and veg time (this is important!), and feed it properly.

Given 2 plants (one trained and one untrained) in 1 gallon pots with the same amoutn of light, the plant being grown as a single-cola plant will give you the biggest cola, even though the plants may have similar overall weight.

Hope that helps. Some growers do a final pruning at the onset of flower to remove all but the 4 strongest stalks so that the ratio of big desirable colas to popcorn buds is very high.