Here is a photo of the Pro-V1 I was using until the end of my round this morning. It has been in play since Wednesday of last week. i put it into play on the fifth hole on Wednesday, then used it Friday, Saturday, Wednesday, Thursday, and today. That's 14 holes plus 5 full rounds. After I putted out on the 18th today, I tossed this one into the grenade pond so it can rest with the golf gods. Pro-V1's are good.