I was very privileged to participate in a formation flight as a passenger.
T6 4 ship formation flight over Greenwood MS.
Video starts from Engine startup and includes the following formatons: Trail, Finger Four, Echelon and Diamond Formations. A couple of joins and breaks included for good measure. Additional details about this flight is included in the video description.
On my way to Greenwood, pilot did some aerobatics that can be seen here.