Experts probably use an algorithm like this, whether from this book explicitly or just through their experience and judgment. You can see this by observing some of their openings on Bridge Base Online’s Vugraph sessions. Intermediate players can now make their opening decisions more like experts, using the simple formula Mr. Klinger gives.
This method of deciding when and how to open has helped me reach slams, games, and solid part scores that others did not reach. Opening also inhibits the opponents’ bidding.