And the other side of the coin... is it possible to get dynamic IP /64's (or is it /56's) on IPV6? Otherwise, trackers won't need cookies, etc. They'll know that a certain address block is always the same household.
As far as I know, TSI gives you a static /64 or /56 block. If you're *that* concerned with web sites being able to track you, you shouldn't rely on dynamic IP addresses anymore than static IP addresses. You should use a proxy that completely hides your IP address, whether it's static or not.