Update!
I blew my 10w3v2 w/2 bridged channels from my old ZX460 (Rated @ 180w total for the sub, but probably a tad over 200 watts) Blown coil(s)
No signs of distress before or after the failure. It was jamming well at about 2/3 of the maximum volume I run for 2 "normal" songs and most of a rather harsh (intentional distortion produced into the track) dubstep track.
I was worried about the foam surround and the coils were the link to break. (the spider, tinsel wire, and foam surround look practically new)
I have two 12w3v3 sitting under my work bench and have examined them closely. The seem to have a nicer system of tinsel wire strain relief, and cone connection method, but no other obvious power-handling upgrades.
Be vary careful with the power you send to your v3 if you get one.