At our 'nighter, we get a lot of teams shutting down because they have a teammate off the front in a break. No blocking though. One recent night, we had two guys in a break up the road, and the pack forced another teammate in the front, so we just pulled at 23mph or so really smooth to keep things moving. Eventually some other teams sent riders to the front to organize some intensity, and we just went back into the fold (no blocking).

I wanted my guys to stay away so I could practice bridging later.

I agree though, there's no reason to get in and disrupt a chase or anything. Even "covering," I would still do my share just to see if we could make the bridge work.

Of course, this is a training race, not a "group ride."