That's mostly true, though Fantasy have issued material like the first 2 Mar-Keys LPs and Albert King's first Stax LP, that I can mention off the top of my head. However, the big selling Stax material mostly came after 5/68 - Ike Hayes, Johnny Taylor, Staples, Soul Children, Little Milton, Albert King, Dramatics, Rance Allen.
That's interesting - can you explain a bit more please?
It's definitely a better brand for Hard Bop than anything anywhere. But it's not a better brand for Soul Jazz than Prestige. It's not a better brand for Soul than Stax. It's not a better brand for Gospel than Specialty.
MG