Is there anyone who has been insane enough to race his Viper in races scored using the Portsmouth Yardstick scoring system? If so, and you are willing to admit it, I'd like to talk with you about your experience(s) with Portsmouth.
Johnny
http://forum.viper640.org/index.php?topic=1088.0
And we've done it twice since then -- it's an annual event for us in Larchmont.
We race with the Portsmouth rating at our local club in Central Florida for rum races, club races, and 3 - 4 regattas per year. I don't think the results are very different from PHRF. We have learned that basically if we can't plane, we can't win.
Yesterday we had a rum race - actually for a bottle of Patron tequila - yesterday with started with the wind under 5 with a beat to windward, the wind picked up to about eight and downwind 9.3 was as fast as we got. It was about a six mile race and we were second to a San Juan 21 by about two minutes. Our time was 70 mins 27 seconds. I don't have the published results yet, but his time was probably around 92 minutes.
We won on this course before, but we were doing 13 and 14 on the downwind leg.