My advice is to never, ever, never break formation when riding together.  You must keep in formation and if a rider falls out of formation everybody needs to readjust to a lane change to maintain a staggered formation.  Breaking the formation will create huge gaps in the line causing many to get hung up at stop lights and create collisions with other bikes.  Keep the three wheel trikes out of the formation as they are dangerous to riders behind them and can not maintain a correct formation, especially on curves.  Trikes are slower on acceleration and break formation constantly.  Trikes are to be leading the pack or last with the gatekeeper.  Another bit of advice is put the most sensible riders who know how to keep a group of bikes together in the front.  That means riders who know how to ride slow so the pack can keep pace and stay together.  Hot-rodder in the front leave everybody behind in disarray and the pack gets fragmented and creates a nasty bear of a ride.  Do not keep passing cars on streets or freeways.  Lane changing fragments the entire group and increases risk of collisions with cars and bikes.  Many times I have pulled away and left a group when dangerous clowns are leading a bike run.  Don't ride with them.  How many times have you heard or seen bikes being rammed from behind by other bikes?  This is because of the above and one more factor... speeding and stopping, speeding up and stopping.  The ride acts as an accordion bellows expanding and contracting instead of flowing as a pack and will create trouble for all riders.  Usually severe accidents.  If a group is riding fast, faster than you normally would ride on such a road, beware.  These are "clowns" and are too dangerous to ride with.  Groups don't ride fast and reckless.  Drop out of such groups and let them go on without you.  These guys crash.  Do you want to go down with them?  I have seen this time and time again.  Ride with professionals, not clowns.

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