NightHiker,

I'm not sure I understand. I suspect you are saying you often disagree with the suggested routing a Navigation system is providing.

If you are suggesting that a GPS has provided position data that was off by more than its reported accuracy limits (due to satellite geometry) I would be more concerned.

Hopefully you are saying the former and if so that is something that makes sense to me. Too many people don't use their own thoughts and judgement when following directions. A Navigation system, like most suggested or prepackaged routes, is not meant to be used without taking external information and conditions into account. Unfortunately too many people don't understand that so we get stories about cars turning off the highway and into peoples houses or driving down service road instead of continuing on to the highway just ahead.

-Eric
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You are never beaten until you admit it. - - General George S. Patton