The Flag Ship Service Organization (FSSO) is a Church of Scientology located aboard the Motor Vessel Freewinds, a 440-foot ship based in the Caribbean, with the home port of Curaçao. They deliver a version of New OT VIII, altered by David Miscavige from the original. Numerous eye witnesses and victims report that the engine room and lower decks of the Freewinds also serve as a floating prison for senior executives of the Church of Scientology and various staff who defy the orders of David Miscavige. For several years the Freewinds has augmented its income by delivering "OT Debugs," seminars on many topics (such as art or ethics) and by delivering mini courses that accompany various LRH recorded lectures from the 1950, called "OT Hatting Courses." These ideas were invented in 1989 by Mary Ziff, a staff member responsible for marketing the Freewinds in the Central Marketing Unit of the Church of Scientology.