mostly I want to see some stuff happen so I can come in, declare it Insufficiently Historically Opaque and come up with a list of sound changes that will require rejiggling the entire grammar hth

at least that is how I conlang usually

quoting Rhetorica:

As far as I can tell from their Wikipedia recordings, [ʕ] is barely audible, and contrast between [ħ] and [h] is ridiculously hard to hear.

have you ever heard Arabic in the wild
x/X is a much harder distinction to hear than the distinction between any of X H h