Two Snake/Sagittarius together is a 95-100% mirror, two uncannily perceptive people who each read the room like a see-through comic book and now find themselves perfectly, almost eerily, read by the other. Both halves balance the Snake's caution with the Sagittarius leap. The match is insightful and surprisingly steady. The danger the canon named is real: your romance thrives on mystery, and two people who can read each other this clearly may run low on it.
Chemistry is intuitive and deep. Both Snake/Sagittarius halves want a partner they cannot quite figure out, which is a paradox when each of you can read almost anyone. The thrill comes from the corners you still cannot see into. The bedroom stays alive exactly as long as a little mystery survives, so guard a private chamber or two on purpose.
Talk is perceptive, frank, and a step ahead. Both halves often know what the other means before it is fully said, which makes for beautiful shorthand and a quiet hazard: finishing each other's thoughts can shade into assuming them. Let the other actually arrive at the point sometimes.
Friction comes from over-reading. When two people this perceptive each decide they already know what the other really meant, a small misread hardens into a settled conclusion fast. The cure is to ask out loud instead of trusting your famous radar, which is right often enough to be dangerous.
What each Snake/Sagittarius needs from the other is to keep moving. The canon warns that while you rest on your laurels, everyone else forges ahead, and two contented mind-readers can coast for years. Pick shared goals that stretch you both, preserve a little mutual mystery, and the insight that bonds you keeps pointing forward instead of going stale.
At 95-100%, this is one of the most perceptive and well-matched pairings the formula scores. Two Snake/Sagittarius understand each other almost too well. Keep a few secrets and keep climbing, and it stays electric.