I currently play a 910 D2 set at std lie & 8.75 loft with a Diamana Red 44vsl stiff shaft 45". I have hit the 915D2 with the Diamana Red 50 & Blue 60 shafts loved the ball flight & carry/distance . I have always used a 460 head driver. But been thinking maybe a D3 might be a better weight. Has anyone had any issues (visual or swinging, distance etc etc) switching to a 440 like the 915D3 has. The golf shop I usually hit at does not have the D3 at this time as their demo club broke, but I'm thinking I might like the swing weight better than the D2 but the different head size concerns me for some reason. I'm a 16hdcp hit around 240 off the tee with a slight draw. Just curious because I don't paly golf with others that use Titleist equipment to ask.