Personally, I go back and forth between PT and Logic and I don't ever use track freeze, but I understand why some users like it.
In order to understand what kind of impact 64-bit has, check this out:
http://www.nedwebserver.com/ned-web/...7c50v112r29975
- I feel that this by far outweighs the importance of freezing tracks, since it in many ways takes care of the need for it, with benefits:
- saves the time of sitting through the freeze process (it's not instant).
- if you need to make changes on a track, it's quicker vs. un-freezing and re-freezing