For me, while reading the Japanese manga, I hear only the Japanese voices.
But while reading Viz' edition, I hear a mixture between the Japanese and FUNimation & Ocean cast from time to time.
Like hearing Goku as Peter Kalamese ((Did I spell it right?)) in a time and Masako Nozawa in another time. This is goes also for other characters like Piccolo, Trunks, Mr. Stan and Cell
You can say the voices I like and not having problem with them...
But for characters like Freeza, Recoome and 19 who had infamous bad dub voices, I try my hardest to hear them in the Japanese voices.











