not really.. I understand the concept of GPS and this is a backup to my onboard IFR Garmin 400 and onboard weather radar.. The terrain is a bonus. I don't carry passengers, but from my actual flying experience, except for this one set of occurrences at this one runway, the Garmin 496 performs as good or better than my IFR certified Garmin 400 panel mount GPS and the terrain functions are as good as any approved GPWS units that I have flown with.

I am not really looking for technical data.. Just wondering if others have had this issue at Austin or other airports.