Second run: now with guides basically ripped off of the current world record: charlocharlie's 1:21:14 run.
As you might notice on the top-right corner of the timer, that was my 8th attempt. I was failing at the beginning like I never did before.
I also ended up failing or ignoring quite a bit of the guides. Part of my time losses were due to getting lost, so then I just ignored the guide's directions and used the GPS. Then on Fading Signal, I got lost trying to get out of the area, forgetting that I was going to fast travel to the silo anyway, so that didn't matter.
On the other hand, I saved around 20 minutes over my first run, taking the current 5th place of 1:49:22, so let's not complain. And that's just how much you improve.
I'll probably do another run, but I don't think I can improve it enough to take the current 4th place of 1:29:52 without several practice runs, and I'm more of a casual speedrunner, so after the next run, I won't try again unless I see big potential for improvement - I'm not of the type who reruns over a few seconds.
And it's pretty sad that I had to edit Speed Guides Live's code to resize it's window.
splits.io link: https://splits.io/3sau Guide and splits download link: https://drive.google.com/open?id=13WOiPx06TJT18Heqj3laWxScR4gjc_sn