I play the 400 SZ and I LOOOVE the driver I consistenly hit my straighest and longest shots with it. I play it with a regular flex and as many golfers, I do tend to push it to the right, but usually I can correct it by the next hole. The Taylormade quad is also a good driver, my best friend has that and I've hit it a few times, the Cobra is more forgiving as it is not a tour driver like the taylormade, but you will hit the ball a tad longer with the taylormade and the weights help a lot. And the 440cc size of your driver makes it quite forgiving and easier to hit. Ultimately the decision is yours on how each club feels.