Conversion and Tracking Code placement

Suppose we have a website having Google Analytics code installed.
Now if we would like to run an optimizer test.
Where should the conversion and tracking scripts be placed?
I was thinking the GA code would go just before the </BODY> tag and the other scripts can go below the </HTML>
Google help document says to place the conversion code just before the </BODY> tag. But this is the exact preferred location for the GA code as well.
Now if we would like to run an optimizer test.
Where should the conversion and tracking scripts be placed?
I was thinking the GA code would go just before the </BODY> tag and the other scripts can go below the </HTML>
Google help document says to place the conversion code just before the </BODY> tag. But this is the exact preferred location for the GA code as well.