Genesis Revestel

Hello all today I tried the voice morphing in viewer but it didn't sound so well. I've tried few programs to see how it goes but I didn't had much of luck, though I only went through those briefly. Has anyone been able to shift their voice from male to female, or female to male using some tool, program, etc? Any tips welcome, I'd really love to get it to work, it doesn't have to be perfect but at least good (decent?)