I'm noticing that courses I import to my Edge 1050 show way more elevation on the device versus the site where it was built.
That's a big difference! I built the course on RideWithGPS, and the elevation there is the same as on Garmin Connect, in the app and online. So something wonky is happening when it's syncing to my 1050. I see others posting about this as well, so consider this a +1 vote on those posts as they are from months ago and still not addressed.