I'm buying a driver for my dad for christmas. He is constantly impressed with my drives and wishes he could hit the ball as straight. The problem is his swing style, his grip is way to strong and his forward hand (right hand because he's south paw) is completely turned over with the back of it facing directly up. This forces his forward shoulder to jut much higher. For his stance he lines up aiming left, then pulls the club in to send the ball to the right side of the fairway, and it usually draws, sometimes slices, back to the middle. His driver is an old 9.5 loft with an offset head, probably at least 12 years old. Any suggestions as to what brand? I'm considering taylor made for the adjustability. He can't change how he swings much because he's been doing it for years. Thanks in advance.