I am planning to go and race in Colorado Springs in April. I live at sea level and and heard different people telling me that to go and race in altitude I am better off arriving only 24 hours of the race. The race is actually Saturday and Sunday. I can get there even 3 days in advance but now with people sugestions I am thinking it twice. Any advice about when to get there since I will not be able to get there more than 5 days in advance.