This post is a good chance for bay and shoot hunters to give their input. IMO I would'nt think that you would need more than 2 people to bay and shoot, but the same can be said with catch and tie too....Also I would think it to be benificial to have more team members=more dogs. I would think that just because you had more team members, that not all of them would be shooting (hopefully).
Even though I am a catch and tie hunter, I think that the rules should be "up to a 4 person team".