Anyone have any experience using Altitude Advantage from Wilderness Athlete? Since I live about as close to see level as you can get, I am thinking about trying it out on my elk hunt this fall. We will probably be around the 9-10.5K range but the elk will ultimately decide that. Vacation time will only allow us to arrive 2 days before the season opens and of course we are going to want to start hiking in, get camp setup, and start glassing asap.