None of these guys were talking about athletic fields -- they are burying their own home lawns in sand. We can talk about athletic fields if you want. I've managed fields for the World Series, Super Bowl, and World Cup. Which high-profile athletic events have you managed turf for? I think the point here is to match the right practices for the right place. In most home lawns, all you're doing here is making more work for yourself without improving the result. Not saying that you can't do it, but you're not making anything better.