It looks like Rory switched grips at The Northern Trust this week. He's used Golf Pride MCC for years, but he appears to be playing a Tour Velvet this week. Any insight into why he made the change? It's my understanding he'd been playing a tour only ribbed version of the black/white MCC, but he has his Tour Velvets on "logo down". Did he switch to round?
This seems like a fairly significant equipment change to make heading into the playoffs. The promo shots of him hitting balls at Yankee Stadium had the MCC grips still, so this looks like something he would have done early in the week on the tour truck.