I'm confused.

Why would RES stunt in an only RES pond where food is limited, but not in a pond where food is limited but with other fish species?

Now in that thread that I referred to above, Ewest mentions that stunting has to be viewed upon in older fish. So with both of these things he says, I assume he is hinting at the idea that a young fish may not get the food and will just perish rather than get older and stunt? Or perhaps stunted RES don't exist in a mixed species pond because those that don't get enough food will be eaten?

Are the RES in fish farms underweight(not stunted?) because of density, but then regain back to normal(if released soon enough)when put into a normal pond? Would those RES(at a fish farm in high numbers) flat out die rather than live a another year to be considered stunted?