But not all the initiatives proved a hit, with the electronic umpiring system causing confusion for the crews.
As well, spectators have found the format, which includes fleet races and speed trials as well as traditional match-racing, difficult to follow.
But the biggest formatting blunder will remain in place for the Plymouth regatta with organisers opting to stick with a winner-takes-all final race, despite mass confusion for spectators.
Barker believes the concept is flawed.
"A winner-takes-all race on the Sunday is a bit tough, because the style of racing is very short and sharp. So one team could perform poorly all week, yet they could go out and have a really good race on the Sunday and come away the winner of the event."
The forecast for the opening weekend in Plymouth is for strong winds in the 20+ knot range, with squalls bringing gusts approaching 30 knots - right on the limit for the AC45s.
America's Cup
Round two of the world series in Plymouth, England
* Today, Tomorrow: Fleet racing championships, speed trial
* September 14-17: Match racing championships
* September 18: Winner-takes-all final fleet race.