The program doesn't always give the number of holes as you input, in my experience. Often it's one or 2 off. So I doubt that's your issue for printing incorrect scale. I wouldn't waste your time trying to make an incorrect printout fit - it's either right or it isn't. When others have had problems, usually the reason is either that they have tried to use the very first page of the print output, which isn't the right size, just a visual of how it will look. OR as Jim says, their printer settings are ticked to 'shrink to fit page' or 'resize' or some such thing.