Marc C's advice is sound. The "3rd or 4th day syndrome" is not altitude, it's either dehydration or overdoing in some other way. Patrick should know, because it was I not him that had this problem on our Montana/Wyoming trip. I had "dead legs" days 2-4, and took day 5 off so I could maximize the rest of the trip at Jackson. I did not have headaches, etc., and I ascribe the problem to hiking the Ridge at Bridger at the end of day 1 after a long previous day getting to Montana. I sent Patrick off with hamdog on day 3 at Big Sky because I knew I might get in trouble trying to keep up.
And a week later I drove up to Mammoth from sea level and skied at close to my best.
I would say that just because you're skiing well on the early days at altitude does not need mean you should be doing extended hikes above 10K. I recommend laying off the hikes until you've been there 3-4 days at least. And Bernard P. has the advantage of being in Aspen 2 weeks. I found after a whole week in Colorado that I was comfortable hiking at Silverton at 12K+. So on his second week he could possibly hit Highlands Bowl with the locals.
My understanding is that sleep altitude is the key. It is not likely, but possible, that someone comfortable staying in SLC and skiing Altabird might be uncomfortable sleeping in the resorts. But if you're OK sleeping in the resort, I have to believe that you'll acclimatize faster.
I have a friend who lived in Denver 5 years and bought a condo in Keystone (9,200 ft). When he moved back to the Midwest he found that he could no longer sleep in his Keystone condo because his heart rate dropped to 29 if he fell asleep and he would come up gasping for air. This was diagnosed as a heart disorder, and they recommended he get a pacemaker. He sold the condo instead.
And a week later I drove up to Mammoth from sea level and skied at close to my best.
I would say that just because you're skiing well on the early days at altitude does not need mean you should be doing extended hikes above 10K. I recommend laying off the hikes until you've been there 3-4 days at least. And Bernard P. has the advantage of being in Aspen 2 weeks. I found after a whole week in Colorado that I was comfortable hiking at Silverton at 12K+. So on his second week he could possibly hit Highlands Bowl with the locals.
My understanding is that sleep altitude is the key. It is not likely, but possible, that someone comfortable staying in SLC and skiing Altabird might be uncomfortable sleeping in the resorts. But if you're OK sleeping in the resort, I have to believe that you'll acclimatize faster.
I have a friend who lived in Denver 5 years and bought a condo in Keystone (9,200 ft). When he moved back to the Midwest he found that he could no longer sleep in his Keystone condo because his heart rate dropped to 29 if he fell asleep and he would come up gasping for air. This was diagnosed as a heart disorder, and they recommended he get a pacemaker. He sold the condo instead.