title: What Are The Benefits Of Tile Overlap?
body: <p>Just starting out playing with OpenSeadragon (very good btw) and on creating a custom tile set am wondering what the advantages or disadvantages of creating tiles with an overlap?</p>
  
  <p>I've tried using 0 and it seems ok, but I wonder if there are any clarity or performance advantages or having the tiles overlap (I think DeepZoom format uses 4 for example?)</p>
  
  <p>Thanks for any guidance!</p>