Dog/Taurus and Dog/Sagittarius meet at 78–83%, the sober-commanding-dignity Canine encounters the play-becomes-work Dog. Different relationships to motion entirely. Dog/Taurus stays put; Dog/Sagittarius runs. The Dog kinship is doing real work.
Chemistry is uneven in pace. Dog/Taurus brings sober commanding dignity; Dog/Sagittarius brings the Frisbee-energy and life-sustaining sense of fun. The bedroom requires Dog/Sagittarius to stop running and Dog/Taurus to lower the dignity guard. Both halves benefit when they meet halfway.
Conversation is plain on Dog/Taurus's side and rapid on Dog/Sagittarius's. Dog/Taurus speaks slowly and means it; Dog/Sagittarius riffs and laughs. The risk: Dog/Taurus's slow pace exhausts Dog/Sagittarius, and Dog/Sagittarius's restlessness reads as disrespect to Dog/Taurus.
Friction lives in pride versus escape. Dog/Taurus shoves the right-way through; Dog/Sagittarius climbs out the window when cornered. When Dog/Sagittarius bolts, Dog/Taurus quietly takes over and resents the bolting.
Dog/Taurus learns from Dog/Sagittarius that play is a form of life-sustaining loyalty; Dog/Sagittarius learns from Dog/Taurus that staying through the unpleasant share is the canon's exact prescription. Both halves stretch.
At 78–83%, this is a moderately compatible, real-effort pairing. Dog/Taurus and Dog/Sagittarius can build a real life, both halves negotiate the pace explicitly.