Carson records are really weird. Shepp's "Doodlin'" is another one but that seems to have also taken place as part of the America series of recordings, and just didn't fit with the others (Pitchin' Can, Coral Rock, Black Gipsy). The only Carson copy of Chi-Congo that I have seen in person looked to be a 1980s pressing, perhaps some sort of weird bootleg. The cover did not at all have the construction or feel of an early 70s French release.