Would really like to see FHitResults contain a impact point / impulse value in relative space to the physics body eventually. With how the physics thread reports to the game thread the hit events, the actual position of the two colliding objects are not actually in the same spot as when the hit was generated initially.
This can get pretty far off and annoying when managing trying to apply impulses or attachments to the exact hit location (on the body) between two bodies if one or both are not kinematic (and guaranteed to have the same game thread position post hit). Even worse is when trying to do logic entirely with physics and neither body is in the same location as the hit was generated at.
AFAIK besides adding a contact modification binding and storing out all relevant hits as they happen separately (really unrealistic to do), there is no real way to achieve rock solid hit locations on non kinematic objects currently.