Looking again at our book this is my challenge. The new spacing of the forms is provided. Great ! Then the phrase "you may need to scale the end forms as well" The end form runs in line with the strong back.so is the scaling in height and length? Just in th length since that would match the scaling that the formula provided in the book does. Or is there something in the middle were I make it full size then just wing it so to speek. Making it look decent with the spacing provided in the book. Either way there doesn't seem to be any guidance scaling the size of the end forms just changing the spacing of the form discs to the new length.