Dog/Sagittarius and Dog/Pisces meet at 83–88%, the play-becomes-work Canine encounters the alarm-bell meticulously-organized Dog. Different relationships to motion entirely. Dog/Sagittarius wants the world; Dog/Pisces wants the cocoon arranged just so. Mutual loyalty is the only thing keeping you both at the same table.
Chemistry is uneven in pace. Dog/Sagittarius brings the Frisbee-energy and outdoor improvisation; Dog/Pisces brings Doglike devotion and the carefully arranged environment. The bedroom requires Dog/Sagittarius to stop running and Dog/Pisces to come out of the cocoon. Both halves can do it; neither half does it accidentally.
Conversation is fast on Dog/Sagittarius's side and structured on Dog/Pisces's. Dog/Sagittarius riffs and proposes; Dog/Pisces speaks in calm tidy sentences when the environment allows. The risk: Dog/Sagittarius's pace disturbs the cocoon, and Dog/Pisces's alarm bells ring.
Friction lives in motion versus order. When Dog/Sagittarius bolts, Dog/Pisces takes the bolting as a security threat. When Dog/Pisces fortifies the cocoon, Dog/Sagittarius feels the canon-warned carpeted coffin.
Dog/Sagittarius learns from Dog/Pisces that some staying is its own adventure; Dog/Pisces learns from Dog/Sagittarius that the quality of love cannot be constrained, even by a beautifully arranged room. Both halves stretch.
At 83–88%, this is a moderately compatible, real-effort pairing. Dog/Sagittarius and Dog/Pisces can build something durable, both halves negotiate the door explicitly.