Tie breakers is a whole 'nother can of worms. Since I am an ex-motocrosser, I like the tie to be broke by the last race. That is a designated way to break ties and SailWave supports it as well. And it is much more simple to keep track of.
And for adding electricity to the sport, it really puts the test to the sailors in the last race of a series. Do well and win.., do poorly and lose. And you know it after the race is over -- you don't have to wait until you are ashore and some machine figures it out.
Rick