Pairing matters, but it comes later

This is an English reading overview of the Chinese article, rather than a complete translation. The Chinese source has been updated since this overview was prepared; consult the original for the latest details.

The central idea

A harmonious pair is desirable, yet close matching cannot make a poor foundation sound. First exclude risks and assess shell quality, surface quality and natural character. Then consider whether the two walnuts work together in shape, proportions, feel and appearance, alongside comfortable size and price.