Personally, I use the software with the Internet connection option instead of the CompUServe number. It's much more elegant in my opinion. Also, you only give up 500 miles per booking if you have only 2 segments. With 4 or more segments, you still get 1000 miles (250 x 4). But when I fly just to Chicago, I use the web to get 1000 miles (500 x 2).