Perhaps because their wings looked so similar, many standard rogallo pilots were convinced of the superiority of the manufacturer whose glider they flew. One glider did stand out as superior to all others, the Skyhook IIIA -- built in England's industrial north-west. Coincidentally the author flew one.

They may have looked much alike, but differing sailcloth, the amount of billow, varying flexibility and weight of tubing made big differences. At Kimmeridge I had a go in an Eipper Flexi Flier, a standard rogallo from California, and was impressed by its responsiveness and quietness.