I would have to research that before I agreed or disagreed, 'auths vs prefs in the case of VSL'. In the case of many plugins I am definitely familiar with enough to 'know', that statement is *not true*. IE: you delete preferences and now a new authorization is required. As per hosts*, EG: I delete Cubase preferences and previous issues of blacklisted plugs appear, which were ignored according to the old preferences, and now.require sorting.
What specifically happened is I failed to have the right key in the right machine, and I instantiated something which required it (*: In VE Pro, which is information I omitted). That was the only problem. It did result in an issue with that vi frame. There was no update involved in that problem.
Regardless, Waves' would be a good *option* to have, I guess.