They call what Targa is describing the Isosceles Stance. I prefer the Weaver stance for most things (especially precision shooting), or even kneeling, but to each their own.
Masraum don't worry about speed. As Li Mu Bai says in crouching tiger, "Real sharpness comes without effort."
IOW, practice practice practice and the speed comes all on it's own.
I also view precision to be far more important than speed, but again....opinions vary.