Just got back from a week at the in laws in the NC mountains. Played the muni course there. It is about 2500 or so feet above sea level. How much effect does that altitude have on the carry with the golf ball. I noticed that everything seemed at least one club longer, and driver and 3 wood were way longer than normal. I think on almost every par 5 I was hitting either a 6 or 7 iron into the greens. Just am curious as to would that amount of altitude have such a great effect on the ball flight?