I like to use clear nail polish around the socket area an on the back of the board.. Then I layer the eraser all around the socket till its over the caps an socket level. I also use 3 layers of frostking on the back. You should be good with one or 2 layers since yur only dicing.
Here is a Kingpin thread that got me started back when.
http://www.xtremesystems.org/forums/...d.php?t=125155