Top-notch fiddlers, presumably including Andy himself, would not ask my advice, and I would not tell them what they should do or not.

We are talking about not-yet-top-notches who must make decisions. They should know that there are many musicians who fall short of their possibilities because they learned sub-optimal techniques.

When I listen to musicians playing folk music I sometimes think "If they had a more folkish way of articulation they would do better" but I never think "If they had a less orthodox technique they would do better".