Quoting Herman Miller <[log in to unmask]>:

> I agree with using [P] for [p\]; we don't need it for [v\] any more, and
> I wouldn't be surprised if it's already been used for [p\] once or twice
> before.

Anymore? [P] and [v\] for the labiodental approximant were both introduced in
the X-SAMPA document; I can't see how the need could have changed since.
Needless to say, I don't think there was any need for [P] for this use in the
first place.

Various posters on this list, incl yours truly, have used [P] for the bilabial
fric on this list. Infact, yours truly is in this very moment thinking to
replace [p\] with [P] on his website to increase the weight of usage in favour
of a change to the CXS.