Typhoon Also look at your set up. For some people they have been trying to correct “the rights” for years by altering their set up ie: closing shoulders, closing stance. Get your shoulders squared up and feet as well, flare out that left foot a lot to get the hips through faster.
Can't speak for the others with the problem, but for me I've not changed anything since golfing with Hammurabi.
The 400 SFT must be 'just another' gen of the Ping Sf Tec. I've had the G30 SF Tec and now have the G SF Tec, and both are as is being described above...dead straight(and long) with a bit lower flight, with some 'lefts' thrown in occasionally. But, I get those lefts from all my drivers, at least once per round. It comes from those 'kill the ball' swings, when you have a wide-open FW.
Confidence in a driver is sometimes not so good.😉