Paul - thanks for the details. I guess I need to look more carefully at the ships themselves. I was assuming the major differences between the lines were in service and the amount of automation on Wind Star.
We have seen both Royal Clipper and Wind Surf (I think) in port but not at the same time of from the same distance.
A Bad Day At Sea [with power] Always Beats A Good Day At Work
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012, Dream 2013
Celebrity: Summit 2011
Princess: Ruby 2010, 2014, Caribbean 2013, Coral 2014, Regal 2014
Star Clippers: Royal Clipper 2015