Never switch balls again

I have played the Pro V ever since it hit the golf scene. However, due to the stability in wind that a Hex patterned ball claims, I started playing Hex Tour. We do get a little wind in Texas but wasn't seeing much difference with this ball.
On October 15, 2012 I reached in my bag and decided to play my old reliable Pro V1. On the 147 yard 3rd hole, a crisply struck 9 iron landed 5 feet in front of the hole, took one hop, checked up and disappeared in the hole! Never switch balls again!