Community help needed with AI and Radio Comms

[Zappatime]

Error description: Lead plane in an AI group doesnt bank at the same angle to the rest of the group but follows the same flight path.
Details: If you watch any mission with a group of AI aircraft, one plane, usually the leader I think, is always banking at a much shallower angle than the rest of the group, yet still follows the same collective flight path. I think this also happens if you switch your plane to autopilot, the rest of your group/squadron will be banking as they turn at what looks to be the correct angle, but your own plane, under the autopilot, will be banking far less in the turn, yet still keeping in formation.
Can it be consistently reproduced?: yes watch any mission with a group of ai planes, or your own on autopilot in a group
Screenshot or video: Difficult to see unless at full screen res in this shot, the plane second from right is hardly banking compared with the rest of the group: http://steamcommunity.com/profiles/7...656?tab=public

OS, system specs: see below.