Audibly, that sounded better to me. Visually, the graphs on Soundcloud also appear smoother on the decay. Do you hear the improvement?
Perhaps one last experiment is to tune down a half step and capo at the first fret. The objective here is for the rubber on the capo to dampen the string acceleration caused by the release from the pick.
I recently went through this another guitar whose only crime was being very resonant at that frequency. I solved this by using a very "warm" pick with a very rounded tip. Such a pick significantly reduces the violent acceleration as the string separates from it.
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