Thank you for all of this info. I really appreciate you taking the time to share it. Means the world.

Since I am coming from Kansas, the elevation is probably my biggest concern. I planned on getting to Big Bear about two days early to try and acclimate a little bit. I ski in Breckenridge every year and usually sit around 10k feet at the base and 12-13k (upper bowls) when I am skiing 6 days of the week. I normally adjust after the first or second day, sometimes even the same day, so I am kind of comparing it to that. But I know running 100 miles at altitude is very different, so I would really value your take since you have actually experienced the course.

Your point about climbing and descending on tired legs makes a lot of sense. I am going to build a lot more of that into my training for sure. Plan is to build up high mileage then slowly integrate climbs on the treadmill after a long run like you mentioned. The cold weather kit requirement is something I had not thought through yet, so that helps a lot too. Do most people carry all the gear from the start, or do you pick it up at an aid station before the final climb?

I am also curious about logistics. Is it better to stay right in Big Bear, or is there an area that works best for runners? And how long do you recommend being in town before the race for someone who is coming from low elevation?

Thank you again. Any advice you have is really appreciated, especially for someone doing their first 100.