I've done that for production support on an ecommerce site we developed before fully handing off to the client. Spreading the on call work as much as possible a

I've done that for production support on an ecommerce site we developed before fully handing off to the client. Spreading the on call work as much as possible among the dev team I think is ideal, because it adds a shared incentive to employ good practices during the day to reduce incidents after hours. Taking the shifts was optional and had a similar pay structure.