After the Road Captain signals which lane he/she wants the group to move into, each rider will turn on their turn signal and then pass the correct hand signal back to the Tail Gunner. This information should also be communicated by radio from the Road Captain or Ride Leader to the Tail Gunner and group.
When its safe the Tail Gunner will pull over into that lane and hold it for the group, indicating by radio that he has securred the lane.
After the Tail Gunner has secured the new lane, the leader will call for the group to fill in the space from the rear. He signals this by raising his hand to shoulder height and "pushing" it towards the new lane.
All riders repeat the signal, and the last bikes move into the space in the new lane ahead of the Tail Gunner, then the next-to-last bikes move in head of those, and so on until the Ride Leader finally moves into the space ahead of the entire formation.
Do not change lanes unless there is a bike already in that lane behind you.
Always fill the lane from the rear. Not from the Front, Middle or any other position unless outherwise directed by the Road Captain or the Tail Gunner.