Another recheck with Dr Wendy Wallace, and she has officially cleared us to start agility training again! Of course we'll ease back into it with low jumps, minimal turns, etc. We can start with jumps and tunnels, then weave poles and teeter, then dog walk, and leave the a-frame for last.
Both Cai and I are out of practice, so we'll be focusing on handling work with low jumps rather than rushing to get back on the obstacles.
On a different note, I was also happy that Cai only barked at one dog while we were at the vet's office, and it was a brachycephalic dog that was breathing very loudly. Later we went for a walk at the cemetery and he saw three dogs and stayed below threshold around all of them.