I think the Knife tool default should be straight cuts rather than curved. If this were the case, you could draw a cutting path---point by point---very precisely. You can't do this now since you have to hold the mouse button down for each segment, release and then hold to begin the next straight cut. Keeping the mouse button down works fine for curved cuts. Make the curved cut operation the ALT-ernative.
I think the Knife tool default should be straight cuts rather than curved. If this were the case, you could draw a cutting path---point by point---very precisely. You can't do this now since you have to hold the mouse button down for each segment, release and then hold to begin the next straight cut. Keeping the mouse button down works fine for curved cuts. Make the curved cut operation the ALT-ernative.