the bigger the colony is the more it will produce, and the less you mess with it....the more it will produce...as a rule
There are some instances where this isnt true, where actually making a cut and seperating polyps from the colony will stimulate growth, especially if the colony appears healthy, but growth has been stagnant for a while for whatever reason.
As far as the surface area thing, there is certainy some truth to that....but at the same time the concept itself could contradict itself, as if you take a 10 x 10 colony for example, and cut it up into 100 frags with the same amoutn of polyps in each one you will then have much more linear surface area for the polyps to grow out........ But will it really produce more polyps becasue of it?? I would think in perfect conditions and in perfect health it probably would.............but unless you did a true scientific experiment with controls we could never know.
And what about when polyps start growing up and stacking on each other?? That happens too, especially for those of you who keep sand, and start a frag growing on a frag plug in the sand. Theu will start grwoing up on top of each other instead of out to the sand once the plug fills.
lol
hows that for not answering your question??