Capt Scribble, I am a 319/320 pilot.
If I may pick your brain: You didn't feel are hear anything during the TO roll? I had read reports where it sounded like a bomb going off with a shudder but very little yaw. Thus my inclination that if I had something like during the T/O roll without yaw, I would continue the take off. (A severe yaw indicates a thrust problem, thus an abort if below V1) So you had nothing to indicate a problem, eh?
(As an aside we did have one of our Bus' take off from KORD and left the nose wheels in the off field grass (slight Maint screw up) and didn't find out until landing at KDCA, but that is another story - as Gomer Pyle would say "Suprise, Suprise, Suprise"....)