Hi Mark,
Not many people have. We drove The Promise from Brisbane CA to Seattle October 2012. Just over 900 miles. She did just great, didn't really test her ability because we had great weather. Although rounding Cape Mendocino rang the bell a few times.
The headquarters of Roughwater was in Marina del Ray, so you might just see a few in your cruising grounds if you know what to look for.
Rough Water | | PassageMaker
There is a typo right in the beginning of the above article, but the rest is accurate.