Okay, did my first ride with the Edge 1040, standard model, not solar. And I have to say that the Auto Pause and Auto Resume are abysmal! I am used to my Edge 1000, where it takes almost exactly 2.5 seconds both to auto pause and auto resume again, once I get over the auto pause speed. I am not expecting miracles here! I get that these devices aren't perfect, and I never complained about the Edge 1000's 2.5 second start/stop times, because GPS requires cell data, or at least communication with satellites, and it seems reasonable to expect delays in things like auto starting and stopping.
I was on with Tech Support (lol did almost as much phone troubleshooting while stopped on my first 1040 ride) and they couldn't figure out what was wrong. I tried setting the pause speed a little lower. It was 5 MPH, but I dialed it back to 3 MPH, hoping that would help. It didn't. Well, it helped starting, but only by a second or two. They couldn't figure out what was going on.
Basically it takes TEN SECONDS from when I get pedaling more than the pause speed for the 1040 to restart, and almost the same thing, 8 seconds from when I come to a complete stop, to pause.
Now after I hung up with tech support, and continued my ride, I also tried setting the GPS to most accurate, which if I remember right is regular GPS + Glonass? but I could be wrong. Either way, once I did that, the projected battery life immediately plummeted, which is perfectly fine by me. I don't need anywhere near 100 hours of battery, so I like to max out all the settings.
After hanging up with Garmin, I also noticed something interesting, and this I believe is what's causing the problem, but I have no idea what's causing the cause of the problem. I noticed that whenever I come to a complete stop, it takes the 1040 at least 8 full seconds to count down from whatever speed it was just registering to the auto-pause speed. This does NOT happen with my Edge 1000. The two+ seconds pause on that unit is just I assume the device catching up with the data, which I expect and am okay with. But taking upwards of ten seconds just to acknowledge that I have come to a stop is very weird to me.