What is the usual place of articulation of a final /t/ or /d/ after /r/? I am actually only interested in isolated environments when a word like "weird" falls at the end of an utterance (not followed by any other sound) as in the following sentence: That's weird.
In my mind, a sensible pronunciation would be [wiɻd] (or [wiɻʔd~wiɻʔ]) but trying to move the tongue back to the alveolar position after pronouncing the retroflex [ɻ], as I have noticed, requires significant effort (though it is certainly possible; I can do it), and less strenuous would be to replace the alveolar [d] with the retroflex tap [ɽ]. So I really want to know if this is what native American English speakers actually do? What is actually going on there? Or maybe I should keep practicing and practicing until it hopefully becomes easier?