I've tried the new scaling tool that showed up in my toolbox. I've been waiting for years for something like this to be added. It seems to be very inaccurate. I put in the correct scaling ratio, and when I click on the line it is off quite a bit. With imperial, general architecture or landscape scale is one: 20. That means 1 inch equals 20 feet. The actual ratio is 1:240 I use that in the dialogue box and a 40 inch line which should be 800 feet came up at 778 feet. I've tried it a number of ways and it is always wrong. Is there another adjustment?