So I, as many others, have been trying desperately to finish the raid by the 15th. My teams have all (eventually) gotten mechanics and callouts of the final boss down to a T. The only issue that kills each and every run is the tether mechanic. You can't control who you tether to, who the first person in the tether is, and at times the tether refuses to connect where it needs to go no matter what. Not to mention that splash damage from the boss can activate the tether box and get you killed because you can't turn it off while connected. My only idea of a fix would be to treat it like a relic or orb and use an ability button to choose who you tether to next. Maybe even have an indicator on the crosshair when you can and can't tether to something.