communication

Hi guys, Soon season starts here in NJ, USA and I would like to know what you guys are using for communication in group riding. I was last year in couple group ridings and I noticed that hand signals not always works when the group is bigger. Thanks, Arek

Food for thought; after looking at the Skulley Helmet promotion (HUD) it made me wonder once again. Why hasn't MOTOGP/WSB adopted some form of two way communication with riders and crew chief? Think about IRL, NASCAR, F1 they have it in place and it serves several functions (hazards on the...