The decoy thing would be awesome.
You hit on a huge point with the existing concrete castings using thing method, which is structural integrity. High speed or early cure concrete is not always a good thing. When managed and placed even slightly improperly it is weak, crazes, cracks, etc... This causes all kinds of problems. Aesthetics can be masked with a facade so that is not an issue for this technology. They also do not address how this method of concrete placement will handle rebar which is vital to the long term structural integrity of concrete.
Decoy Setting Pro Staff
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He works for free! Who's the B now?