Best combination of agents for library with media not found in imdb (so Plex Movie cannot match)

I was using ‘Plex Movie’ as default agent, but i note that some items no match can be found; The Trout (1970)
, for example cannot be found with ‘Plex Movie’, but can with ‘The Movie Database’. I could match it myself after the fact or should i do this:

Select ‘The Movie Database’ as the default agent but in the server agent settings have:

I was hoping that this way, the movies that can be matched with ‘Plex Movie’ will (so that rotton tomato ratings and actor images are fetched) and those that cannot will be matched with ‘The Movie Database’.

Will this change do what I require?

Probably not. This configuration will only query TMDB for metadata which is not available per Plex Movie.

But I assume, there are only a few movies not be found on Plex Movie.
So you could use ‘Fix Incorrect Match’ on those few movies, click on ‘Search Options’ and switch to TheMovieDatabase. Then match this movie to TMDB instead of Plex Movie.
If the match was successful, it will be stored and the Agent TMDB will be “glued” to this one movie - in a library which uses Plex Movies as default.