A few weeks ago at training one of my team mates said that she feels a dog should have experience being run by different people and that the team should be able to basically run dogs interchangeably. The discussion came about because this person has three dogs trained in flyball and obviously can only run one of them at a time during tournaments. I was just wondering what other people thought about this, especially from a GSD point of view. I know that Nikon would only run for Phil or Falon (and would probably only run for Falon if I was also in the ring and only run for Phil if I was totally out of the picture). I don't really see any value in allowing other people to run my dog either in practice or at tournaments, but I know I've always been pretty guarded with my dogs and want everything we achieve to be as a team (I handle him myself in conformation, don't let other people line-handle him at SchH, etc).