The correspondence of U+A71D ⟨ꜝ⟩ on the IPA simply click letter ⟨ǃ⟩ is thus accidental. Coincidentally, U+A71E ⟨ꜞ⟩ serves because the superscript variant on the extIPA percussive consonant ⟨¡⟩; the opposite percussive letters, ⟨ʬ⟩ and ⟨ʭ⟩, do not need superscript aid in Unicode. ^Preventing 404 problems is much easie