OK, but how do you define the -baseline- or the 100%? Is it a relative thing, ie. the 'fastest' guy at the time trials is the baseline 100% model, and then every one else is some percentage over his time on the upwind leg you described?

That works for that day, but then later in the year, how do you figure you are improving? By how close to that guy you finish in another race? What if he got slower instead of you getting faster?

I've been in favor of measurnig our courses so we can tell how fast we are going, upwind and down, and I think that would help in your system, as we would need couses to be exactly the same distance, but what about the wind?