Well, a day late and a dollar short as always when I finally get myself to the forums, but none the less I'll leave this here for those researching...
For what its worth, the parent company of whom I work for sells electronic gear (various) and at one time decided to carry the Cobra line of GPSr units. A customer of theirs ordered one and sent it back saying it didn't work. Almost unfortunately for them, they almost didn't have a technician to check the unit out... until one employee remembered that I deal with GPSr units in hobby/game of Geocaching.
It only took me 30 minutes (actually a little less) to determine that the unit was.. umm.. how to put this nicely.. a nifty paper weight.
I took it down a expressway here in the city, and it estimated the fastest I was going was 36 mph. I'm not going to get caught doing a measly 36 mph on this expressway, esp not during RUSH HOUR.
Secondly, it kept losing signal of ALL satellites repetitively.. every 1.40 to 2.00 minutes. Clear, Sunny day at that.
So when I took the unit back into the office and told them what I had found, and told them it'd be best sold at $5 for parts/paper weight, they discontinued carrying them.
Take a look at Garmin, Lowrance, and Megellan for your best performance, and bang for your buck.
-- LostFool
"Never Underestimate ..."