do I get this right:
 
- you play your usual bass guitar take
 
- put melodyne on it, bounce from audio to midi
 
- quantesize the midi, correct any flase notes
 
- let a soft synth play the bass track to perfection?
 
if I got this striaght - wow!
 
 

That would most likely work. Doesn't mean you'll end up with something better, but I've never heard you play bass ;)

Sanderxpander
That would most likely work. Doesn't mean you'll end up with something better, but I've never heard you play bass ;)

hehehe -  I don't know either if it will sound better, but certainly more prefect! I am not that bad, but you know...I am a lazy guy, I love to keep it to two, three takes!

Clearly for best results, you should sample your bass guitar and use the MIDI track to drive a sampler. Awesome!
 
But seriously, folks, do what sounds good to you. X3 gives us more rope than ever before for us to either hang ourselves, or make macrame sculpture.

I don't own a bass so I'm thinking of playing bass lines on guitar, converting to MIDI and then transposing down. Of course if you're using it to drive something like Trilian then there's still a lot of work to be done with articulation/keyswitches etc, but the main thing for me is getting the notes and the feeling down first and Melodyne seems ideal for that.

Or, you could play your bass part. Apply Melodyne for pitch and timing correction, compress and eq as needed and call it good. I've done this is Studio One with Melodyne but it should work the same in Sonar.
 
You may find Melodyne a good alternative to audio snap for simple timing corrections.

+1

Or mix a synth'd version of your bass with the original bass track! I am playing with that now with my guitar and a nice slow pad :-)

My favorite underutilized use of Melodyne for Bass- use the Amplitude tool to smooth out differences in volume between your lower and higher notes. WAY easier than automation if you're a guy that jumps around, and it's better than trying to use compression to accomplish the same thing.

Peace,
 
Tunes

Or, you could just practice bass and learn to play the song better. :-)