G.
Road Position -
The Lead rider positions themselves slightly right of middle on the road as much as needed to ensure visibility to others
The Rear Rider positions themselves slightly left of the middle to watch for stopped riders
Other riders should be staggered to increase visibility and always stay in the same lane as the rider ahead to avoid being in the wrong lane when the ride direction changes

H.
Always keep the bike behind you in your mirror, if there is a problem, they can flash their light to get you're attention and this can be passed on up the line. Always leave a three to five second gap between the vehicle in front and the one behind, this allows room for error of judgement.

S.
d. Always obey the two second rule: The leader's position is in the left track of the lane. The second bike is in the right track of the same lane, and is only one second behind the leader. Then the third rider will be in the left track of the lane, two seconds behind the leader. The fourth rider is in the right track of the lane, two seconds behind the second bike, and so on down the line. Maintaining this formation, and these distances will discourage other vehicles from cutting into the group. However, if a vehicle does try to cut in between riders in the group, back off and let them in. The safety of the group, is the first concern. Note: The reason a group needs to ride in such close formation, is that when you are riding on a multi-lane highway, to keep at least one (1) motorcycle of the group will be visible in the other vehicles side view mirrors. This way any vehicle travelling next to the group will not think that they can move into your lane, when in fact there is another motorcycle, not visible to him, already there. This can happen if the group is more spread out than the two (2) second rule.
e. It is illegal and very dangerous to move into single file and ride the left shoulder in order to allow another vehicle to pass you. If a vehicle attempts to pass you, you may have no choice but to do this. Keep in mind, that if another vehicle is coming towards you, it may cause the vehicle passing you to just push you all the way off the road. It could also cause a chain reaction with other vehicles also passing you at the same time. It would be better to just pull off the road at the first safe spot and wait it out, or to increase the speed of the whole group.
f. Don't center your focus on the bike in front of you (that's called tunnel vision). Scan instead, just as you do when riding alone.