M_Boats: Fractional Rigs

Am I the only one who noticed two recent articles...one in Small Craft Advisor and one in Good Old Boat, in which the authors both commented that when racing fleets are free to design any rig they want to match a particular boat, then tend to design something that looks an awful lot like the M15 fractional rig? I think Ted Brewer¹s comment was something like, ³you could design something else, but your boat would lose². Me thinks the designer of the M15 must have known what he was doing. Howard