Once again, it doesn't matter what it says in any rule prior to 2011 Formats. And once again I'm sorry but I just don'w see what difference it makes as to whether you start at the top or the bottom of the page. Maybe I'm missing something.
But I do also repeat once again, that current 2011 Formats simply says that the blank lines should be distributed evenly as much as possible. It says nothing about where you start from.