We do this run on a regular basis & we also have our original experience with RDF and dead-reckoning. By picking your best weather and currents (Cape Cod Canal and the Race) I'd take the first day to Provencetown at the tip of Cape Cod and the second day to Onset, Ma., then Newport followed by Little Naraganset Bay at Watch Hill, then time your current to Old Saybrook. 'take care and joy, Aythya crew