It will be good for guys like Todd Jarrett, Rob Leatham, Brian Enos, and Eric Grauffel to finally know they've been practicing bad
In all seriousness, this is exactly the way we're all taught in IPSC to draw, and the reasons for it are discussed online in so many places it would be redundant for me to get into them here. Lets just say that guys like Grauffel can probably draw and shoot two accurate shots much faster than anyone can in this particular thread.