Finally got round to the not terribly difficult but tedious job of adding geometry to hide the LOD seams.
Done 
http://image.prntscr.com/image/346d7bd7a5cc4d2ca3492c69344a9a8b.png
Finally got round to the not terribly difficult but tedious job of adding geometry to hide the LOD seams.
Done
http://image.prntscr.com/image/346d7bd7a5cc4d2ca3492c69344a9a8b.png