Ox/Cancer and Dog/Leo meet at 65-70%, a fully cross pairing between emotion in motion and a Leo heart that doubts its own roar. One barrels forward without questioning its goals; the other questions everything, especially itself.
Dog/Leo is chewy on the inside, staffed by bickering particles of self-doubt, and needs someone to send it out conquering with banners flying. Ox/Cancer has drive to spare and certainty to lend. The danger is that the Ox, busy conquering the known world, takes its loyal booster for granted.
Ox/Cancer states; Dog/Leo hedges, then surprises everyone with a roar. The Ox's blunt purposefulness can flatten the Dog's tentative offerings, while the Dog's anxieties test the patience of a partner allergic to second-guessing.
Friction lives in reciprocity. Ox/Cancer keeps lovers as ego boosters and buffers, and a Dog already fighting inadequacy feels that coldness keenly. Meanwhile the supersensitive Ox bruises at criticism it freely dishes out.
Dog/Leo learns bravado from a partner who never questions its own worth, and finds its roar faster beside the Ox's certainty. Ox/Cancer learns that a relationship is not staff, and that tenderness spent comes back doubled.
At 65-70%, Ox/Cancer and Dog/Leo are workable with effort: real devotion available on both sides, if the Ox remembers to say thank you and the Dog dares to roar.