It has much more to do with the shooter than the pistol. Work on your grip strength and technique and the differences will even out for you. I'll admit that a gun with a higher bore axis is less forgiving of a weak grip than one with a lower bore axis, but even SHO or WHO I have plenty of control over my SIG.
Here's a vid of me shooting my P226ST with factory 9mm 124gr Federal American Eagle ammo. The fact that it's a stainless frame really doesn't make all that much of a difference, I can shoot my alloy frame gun the exact same way.
http://www.youtube.com/watch?v=0us8FG0pZKQ
I can't see all that much muzzle flip. Look for videos of Ben Stoeger shooting, he's much better than I am and shoots a Beretta, another pistol with a high bore axis. I'm sure if he felt that that slowed him down, he'd jump platforms, considering his lack of sponsorship and his substantial dedication towards improvement.