Just a follow up on my last post. I ran with the new Nike Run Club app this morning & it was back to how it used to be. I'm not sure if it was the update to the app, or the update to watch os 4.2, or the combination, but the NRC app worked great again this morning.
If you liked the app before the version they launched alongside watch os 4.0 (I think ti was 5.9), then you'll like 5.11. Everything was faster (it still took about 4-5 seconds to start the run from the time I hit the start button, but I've always had that happen, so I'm ok with it), even the quarter mile status updates. And when I stopped the run, and saved it, it saved the data, no issues, no crashes. And this was while running the music app at the same time. As long as it continues to work like this, I'll go back to using the Nike Run Club app full time.
If you weren't a fan of the Nike app beforehand, there's nothing here that will make you like it, but if you enjoyed it before the recent version jacked it all up, it's worth giving it a shot again.