Originally Posted by
Iride01
Wouldn't take but a 100 or so not big deals to add up 1000 feet of error. And that's using only 10 feet of track missed on turns or doubling back on a track. And not all of those not big deals have to be the one that I mentioned.
???
Again, cul-de-sacs don't have any particular problem being measured reasonably accurately with GPS.
Over long distances, it could add up to a "1000 feet of error"
but that error would be very small over the total distance (you might not even notice it).
Outside of reception issues** and a really twisty path, the differences between GPS and wheel counter rotation are close.
** This appears to be a real issue for mountain bikers since they are often under heavy tree cover and are doing more "twisty" turns. But you aren't talking about either of these issues.