Welcome RSF,CA_Richard - we'll look forward to hearing from you.
I sailed on the Wind Surf in July, 2001 and I must say I really enjoyed myself. Up to that point, it was the most relaxing (and unique) cruise I had been on. I believe what I enjoyed most was the feeling of being on a "real" sailing vessel with its laid-back ambiance.
The dress code was what you would expect genteel people to wear at dinner (no jeans, shorts, flip-flops, etc.) but instead, nice slacks, sport shirts and the occasional sport coat (with an open collared shirt). The ladies wore similar, casual clothes.
Tipping was at my discretion at the end of the cruise to the staff whom I felt had earned a tip from me. You still have the option to avoid "pre-paid gratuities" by advising the Purser you DO NOT want gratuities automatically charged to your ship's account so that you can pick and choose whom you wish to acknowledge.
I still have not "bought into" this PRIX FIXE
type of tipping.