I was an onlooker on this venture and Pauls did great, especially for a young string. But like he points out he works his regularly at home in the heat. A soft llama is a soft llama no matter where they are trailered from. In my experience very few people will give serious work-outs to their animals in triple digit heat. But if you are the exception to this rule and give them serious training with weight, it can work. No doubt that it helped that base camp was at moderate elevation of < 10,000'. The real puffing starts at over 12K (humans and animals!)I just trailered 6 of my packers from California to Colorado 17.5 hrs
Spent 1 day at the trailhead to acclimate than hiked 14 miles in and camped for 9 days at 10,000'
the llamas did great and didn't notice any problems
they did enjoy the green mountain grass (cali is brown now)
I was nervous about the altitude for them but they handled it better than me
14 miles out in 7 hours ,I was wiped out and they where happy to be done
spent that night at the trailhead then 17.5 hours home
they couldn't wait to get out of the trailer
i do 6 mile training hikes with them a couple times a week so i think that helped
Paul