If I'm looking at these pics correctly, and I think I am, they both show you on "Bridgeport"...?
The maps do differ a little and it does appear you are further down the road on the Street Atlas map but you are in the same place give or take a few yards.
The average GPS, and please correct me if I'm wrong, can be off by a number of yards at any given time...
Although now that I am looking at the Longitude / Latitude, the Latitude is way off. Not as bad as the Longitude, and the elevation!!! It's like you're 4 stories higher...Hmmm....perplexing indeed.
I've never used either SW, is there a way to calibrate it so it could be more accurate?