I have four sons and three of them along with myself are VERY AVID golfers who play many HYPER competitive rounds per year. When the Pro V came out a number of years ago I switched to them immediately and my boys quickly realized that I was much longer and straighter than ever before and at times I was blowing it by all three of them. Need I say more they all switched to Pro V's and I lost my advantage. Now each Xmas I buy each of them a dozen of Personalized Pro V's so I can tell if they are taking any Pro V's out of my golf bag in the garage.