Please feel free to post more than once at a time. Should you have a conversation I would recommend trying through PM to get a little big of it through so it isn't interjected right away. 

That said I am not thinking round robin everyone has their turn as that could be too limiting. 

I don't limit the number of posting, but at times if someone is away for the day and they suddenly come back to a wall of text I might post summaries so people can quickly read up on what has happened.