I know i'm not a professional like most in this forum.....i just want to compete in local sportsman events and don't know where to go for information....it seems that this is an all weight driven sport where you have to consider everything down to the weight of the covering and length of wire used.  Seems strange to even have maximum weights so close to the limits of technology in a sport that is supposed to be fun....  even Formula 1 has gone to minimum weights to keep it from being a " whoever can afford the most carbon and titanium wins" sport.