Some Horo's (including the Sun Ra's) had two pressings. Dead stock copies of the second pressing do turn up quite regularly here in Europe. Sun Ra originals have a yellow label; later Horo pressings have orange labels.
Both sound fine, like in fact many Horo's do.
I've got quite a few Horo, Sun ra New Steps, Steve Grossman, Kenny Clarke etc, all sound good and I've got a fairly high end turntable