Dog/Gemini and Dog/Capricorn meet at 78–83%, the wandering athletic Canine encounters the corseted boring-prude Dog. Different operating systems entirely. Dog/Gemini won't sit still; Dog/Capricorn won't stand up without checking the schedule. The Dog kinship is doing real work here.
Chemistry is tentative and gradually sincere. Dog/Gemini brings athletic restlessness; Dog/Capricorn brings the canon-prescribed candy-and-flowers reluctance. The bedroom requires both halves to commit at the same time, which doesn't happen accidentally. Schedule it. Both halves understand schedules.
Conversation is mismatched. Dog/Gemini riffs and wanders; Dog/Capricorn intimidates with taciturnity. Dog/Gemini finds Dog/Capricorn dull. Dog/Capricorn finds Dog/Gemini exhausting. Both halves are reading each other accurately.
Friction lives in pace. Dog/Gemini avoids unpleasantness by leaving; Dog/Capricorn faces it by silently enduring. When Dog/Gemini wanders out for oxygen, Dog/Capricorn quietly notes another partner who didn't stay for the unglamorous middle.
Dog/Gemini learns from Dog/Capricorn that some unpleasantness is the relationship; Dog/Capricorn learns from Dog/Gemini that the canon's exact prescription, uncross the legs and live a little, sometimes means literally going outside. Both halves can stretch.
At 78–83%, this is a moderately compatible, real-effort pairing. Dog/Gemini and Dog/Capricorn can build something durable, both halves have to accept the other's natural pace.