Latts:

Just go slow to start. I have not tried the asprin routine - maybe I will this year. My first year I had major headaches (dull like a hangover type) in WY at 3-4K feet. Several years since I have not had a problem, we try to get in a day ahead to acclimate and I keep well hydrated even at 8-9K feet. If you are in good physical shape I think it helps. I also don' t have any alcohol in camp and go light on caffine.