1) Hosts have to sent the export. But export is not enought for sprints. So you have to send us export + screen of each sprints. 2) Yes.  3) Deifinitely Slack. We created one channel for each group to facilitate the communication between group members. I reccomend to take it open during the race. You can use from pc but the mobile app is also light 4) We are aware of this. In case of misunderstanding points are given according to names in the sprint screenshoot for the sprints and