Did your group mention whether she is OK with small animals? If the group didn't tell you how she is with small dogs, just watch her when she meets a small dog or sees a small critter on walks. Just be careful if a small off-leash dog or one on a flexi-lead runs up to her If a small dog runs up to Joy, I tell them she's not good with small dogs. Sometimes the person even pays attention to me.
When she sees other dogs, does she pull? If so, you might want to consider a "no-pull" harness.