Wanted to provide visuals.
Pic 1 shows the top layer Stroked type as 0,0,0,0 set to Knock-Out.
Pic 2 shows the bottom layer Filled type set to 0,0,0,0 set to Overprint.
Pic 3 I have changed the Filled type to Knock Out.
Pic 4 shows where to set the Overprint pref in Acrobat 9. This has...