OK, I've re-read this. I think we're saying the same thing for the case at hand. Other than my incorrect statement about "obligated to tack" which seems to have derailed into the Case 15 /Rule 13 issue, which does not apply to the original case in this thread in any way.

BTW, I'm posting this as I pack the RV for a regatta this weekend (Roton Point). Hope you all get a chance to be on the water this weekend!

Mike