Wonderful answers, all. I look forward to hearing more. Newsome uses mostly box pleats which are dimensioned to the tartans he is using at the moment. He also says most of his kilts use only around 4 yards single width. A box pleat of 2 inches will use 6 inches of fabric per pleat. I just wonder if that give it enough weigh to stay down in a breeze, and if box pleats blow up easier than knife pleats, which may have more overlap and maybe hold onto each other a bit. Any suggestions for measurements of box pleats for solid or non-tartan fabrics? How do people feel about box versus knife pleats in use?

By the way, I'm developing an Excel spreadsheet for calculating fabric needed based on waist and pleat show and cover (spacing and depth). Seems to make it easier to play around with the options.