Technically though, when a bone breaks and re-heals, it may be stronger(seems to me like the only bone I ever broke is now weaker/more prone to breaking, but since your argument rests on this I'll let it slide), but it may also have an increased mass due to scar-tissue build up. Can you be sure that the thicker branches arent just thick with scar tissue, and that the 'auxins' are actually now having to thread thier way through a mess of scarred tissue to reach those colas? Also I wonder if the extra stress could lead to hermie branches?
I want to be clear, I'm not saying this 'does' or 'doesn't' work. I don't know. I've never tried it so I don't want anyone to take this the wrong way. But SmokerToker, shouldn't you at least wait until you have seen with your own eyes wether or not the buds are bigger before you start reccomending anything? I mean, at least wait until you see that you are getting vigorous bud growth, and not just extra thick stems, right? This could very well work just fine, I don't know much about the science behind how a broken marijuana plant repairs itself, only that it is usually pretty good at it, lol.
Anyway, the principles behind your theory of it being able to support more weight are very sound. This could even be a method to avoid having to stake strains like Big Bud and other high yeilders. I am not convinced one way or the other about your other theory, I think the jury is out on that one until it's nearing harvest time, for me at least. I've never seen this done before, only heard about it so if it works I am open to trying it