One of the requests I and some others have made was a Global "freeze". If you could freeze the entire project to retain all effects, but leave armed tracks
unfrozen you could essentially do what I understand PT does with their low-latency recording track (in the user's experience, anyway).
Being able to eliminate all plug-in latency on all tracks but the armed one by a Global freeze, would end most complaints about recording latency. And I'll be the first to admit, it's not been predictable in Sonar (for me). You can easily stop/start the Audio engine and latency will zero-out. It has been flaky in past Sonar versions, but I haven't "tracked" in Platinum yet. Only mixed.