Quote Originally Posted by angelozip View Post
Finally, yes, you can set without reference screen satellite: just, for example, record waypoints or tracklogs of 2 or more gps, side by side, and check the discrepancies and relative accuracy among them.
Yes, this is exactly my idea. And logic says, that until someone provide this data, we should assume that problem doesn't exist or at least is not well defined.

Actually we have talked about problem as a result of conversion form 37xx to 34xx. In my opinion this is not real. Nuvi 37xx has weak GPS receiver. Problems with slow fix and tracking errors could be observed regardless of conversion. This was already described in reviews over two years ago, before 34xx was released:
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