There seems to be a great variance of what maneuvering is allowed in bomber formations. Hard horizontal moves have a much shorter drone leash than vertical moves. The typical Barnum And Bailey style buff pilot can do steep dives, climbs and loops without the loss of a drone. I have no problem with the bomber pilot maneuvering but object to there not being a penalty for it.
Just had a Tu-2 pull a steep climb and hang on his prop at 90mph and tumbled back down. There was a huge vertical separation between the lead and the drone but no "boom".
The event occurs at about 1:25 in the film.