Compatibility is more than a score. It’s the relation between two Day Masters, how your elements complete or clash, the harmony/clash of the spouse palace, and the pull and friction of the Ten Gods. The Witch of Myo names both the strength of attraction and the conflict triggers — honestly.
The lens shifts by relationship: lovers (spark, growth), spouses (daily fit, boredom, children, money), friends (trust), partners (roles, risk). You also get the good windows and concrete ways to defuse conflict. Just two birth times needed.