If You Are Using Coins for the I-Ching

You are doing it wrong

1 tail and 2 heads in i-ching coins — Credit

The coin method

Using coins to cast hexagrams has been the standard method of casting hexagrams since the Tang Dynasty (608–907AD). We will quickly review this method as it is the easiest however, bear in mind that it does not produce the results with the same probabilities as the original yarrow stalk method.