Synth V can do multiple syllables and it can do note bending as I call it or using several notes across one syllable.

I have a few basic note bends in a couple of my songs. Nothing really crazy like 5 or 7 notes.... IIRC one of them spans 3 notes.

It all comes down to how well you can work with the details. How accurately you place the notes, and are willing to tweek it to get it right.

I have melodyne and I've been looking for a straightforward method to input the notes to Synth V. Melodyne doesn't currently do a very good translation from audio to midi. It just doesn't work well enough. I guess it would be possible to use Melodyne to help get the notes and then editing SV manually. So I have to use my midi keyboard and play the melody of the singer which doesn't lend well to the slurs in a live singer. But that is fixable note by note in SV.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.