Dan, I have only used chorus on guitar. I never considered it for vocal but I'm willing to try anything. Seems like it would be a "special effect" type thing. but my vocals need all the help that they can get!
I got my Akai( 16 tracks--20 gig--24k/96khz capable) from Mars for only $899
I have never seen them that low anywhere else and I think somebody goofed! Maybe that is why they are bankrupt!
Bill E