Obviously not "cross over" completely because it's not like they had any intentions of being mainstream dressing like they did... But at least to get airplay on the Black radio stations that played Sly & the Family Stone, Ohio Players, EWF, etc.

Some of the guys in the band were very unhappy with the direction and the move to pander to Black radio but George said "Look, we might as well try to get on Black radio because it ain't like (white) rock radio is playing us anyway!"

It's interesting that you compare the sound to "psychedelic" Temptations because those Tempts records were quite influenced by George (who was still working at Motown at the time).