What's the difference between blind six hexagrams and traditional six hexagrams?

Very different. The accuracy of general blind things is limited. After all, it is for the disabled, and it is the livelihood they learn to live on. Affirmation is quite different from the six concepts of orthodox knowledge research. In my city, there is a blind man whose fortune-telling accuracy is very high, but only 70% is allowed. The true six-hexagram 100% accuracy.