Actually, I think the change will favor cannons even more than they are now. I think the idea that little machine gun bullets are more likely to cut control cables that larger explosive cannon rounds is dubious to say the least.
Karnak,
The point we're making is that cannon are already more likely to inflict outright catastrophic part failure (IE, knock them off). That's not going to change. A snapshot by Hispanos is very likely to knock a plane's wing off altogether, which is not going to change. What IS going to change is that a snapshot by Brownings is going to be more likely now to impact the target's flight characteristics, whether by destroying the control cables or chewing up the airfoil.