My opinions only:
I think that if you are sailing a F16 only event (or a F16 class within an Open regatta), then there is more flexibility of teaming up (with on person being marked DNC) in bad weather. In that case it is up to the organizing body of that regatta (and hopefully the other competitors). A good example is the Gulfport Invitational in 2007 and 2008.

Any time sailing in an Open fleet, I think you should sail as you registered for the entire regatta. It is just plain wrong to ditch a crew when the wind is light.

Rumors:
The D-PN (and wind rated factors) may change when ALL the results from 2007 (and 2006 <img src="http://www.catsailor.com/forums/images/graemlins/tongue.gif" alt="" />) are included; evidently some regatta organizers have not sent in their results, yet. These results could have a profound influence on the rating. The bottom line is that there may be a mid-year adjustment to the F16 rating - if the results can be obtained by the Portsmouth Committee. USSA needed to release the 2008 numbers and couldn't wait any longer on the stragglers (my assumption).

Carry on.......