Working on a trail mapping project and I've been really happy with the GNSS module so far in open sky conditions, hitting close to the advertised 1.5m pretty consistently. But I took it out on a test hike last weekend through a fairly dense wooded area and things got a bit sketchy - fix was still solid most of the time but I started noticing what looked like position jumps of maybe 4-6m in spots where the canopy was thick overhead. Not losing the fix entirely, just drifting more than I'd expect.
