ball fitting

Do you need a different ball for different parts of the country. I live in Colorado Springs and the elevation is 6100 ft above sea level.

If I go to Michigan and the elevation is much less, ( i don't know what the elevation is) but it is quite a bit lower. The air is thinner

here. I hit my 6 iron about 183 yards. ProV1X. I still can hit them right? Thanks

...Don't hurt yourself trying to get the same distance..  Between the air resistance and possibly softer turf, you will lose distance.  The 1X will likely still give you the best roll out and greenside game.  Won't be worth the effort to try to get a couple of more yards with something like Velocity or DT Solo off of driver.