"Icebound" wrote in message
...

...so is there anything in the current crop of GPS and/or Autopilot
systems
that allow me to maintain a small cross-track error of my choosing,
without
actually entering off-navaid-off-airport waypoints? ...or do we care; am I
overly concerned???

You're certainly not alone in being concerned.

http://www.pprune.org/go.php?go=/pub/tech/MidAir.html
http://tsb.gc.ca/en/reports/air/1995...8/a95h0008.asp

Julian Scarfe