Rode into the center of Brussels today, filling in the map on wandrer.earth…narrow residential streets with 4-5 story townhouses on either side have always been quite challenging for any GPS I’ve used, probably more so than tree cover, but not by much, if I am guessing.

Initial impression using it in these challenging environments: the GPS fix is bang on accurate. At one point, according to wandrer, which derives its “cyclable” routes from OSM, there were two paths side by side. One was the street, and 5m offset was a bike path. I rode down the street, and back up the bike path to see if it would differentiate my position enough that wandrer would credit both. In the past, with my 1030, the line I would ride would drift enough that I’d get parts of each, but not both. The 1040 track shows me going down the street with no perceptible drift, and then back up the bike path which is right up against a building (which with the 1030 made the drift even more pronounced). I’m shocked at how precise it fixed my position, even with lots of turns and hooking tight corners, etc. Similarly, I rode across the Bois de la Cambre (think Central Park in NYC), this time of year, there is a lot of tree cover, and it faithfully recorded my tracks on the trails…but it might be worth updating OSM, if you catch my “drift."