[schnautza]

I use fit to width normally to maximize the size on screen, however, on many occasions it is beneficial to shrink the page a little smaller to see another line on the next page to avoid a page turn. On many pieces of music, the 2nd page may only be a line or two, or a repeat is positioned near the top of a 2nd page, so zooming out a little eliminates the need for a page turn. The black border is no issue, as long as it's working properly. 

I'll have to give the high quality zooming a try later.