If you are worried about 'too accurate' GPS navigation leading to arriving overhead a VOR along with someone else consider the following.
1. Navigate to waypoints other than VORs because that is what GPS is all about (Intersections can be useful or perhaps some of your very own USERS)
2. Fly deliberately 1 NM right of track and 100' high or low on your usual altitude. (That's what we do on African airways!)
3. Brief all of your passengers about mantaining a lookout and how to determine conflict (relative bearing etc) as well as how to describe intruders position
4. Use all available lights when you consider yourself in a high traffic area
5. Buy and fit some 'CometFlash' strobes
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