Just upgraded from Sonar X2 Studio to Sonar Professional, and it seems Cakewalk has made V-Vocal more difficult and cumbersome to use. 
Under the old version, I used to take these steps:
1. Create a blank audio track under the track I wanted to tune.  This would become my tuned vocal track.
2. Select the clip, press Shift-V.  This created a V-Vocal clip and automatically opened the editor in a perfectly-sized window.
3. After editing, close the editor. Shift-drag the V-Vocal clip to the blank audio track.  This would leave the original untuned clip in the original track, automatically muted.  The muted clip would have a mute icon, making it easy to see it was muted.  The tuned V-Vocal clip would reside in the new track.
4. When all clips were done, I'd have a "safety track" (untuned and muted) and a new "tuned" track.
 
Now to accomplish the same thing, I have to:
1. Select the clip, right-click, choose Region FX/V-Vocal/Create Region FX.  V-Vocal editor opens in Multidock so I can only see a small portion of it.  Have to undock, move it to middle of screen and resize it to work in it.
2. After editing, close the editor and Shift-Ctrl-drag clip to blank track.
3. Go back to original clip, right-click, choose Region FX/V-Vocal/Remove Region FX.
4. Press K to mute the clip.  Muted clip looks exactly like unmuted (no icon), so solo the track and playback to ensure clip muted correctly.
 
Definitely more time-consuming!  Your thoughts?

With the exception of the editor opening in the dock, I disagree.
In X3/Platinum, despite no longer including V-Vocal in the product, I believe Cakewalk made it easier and more intuitive to use.
It totally rocks as an FX Region option.
 
If you want to keep a backup of your un-edited clip, then just clone the track and mute it before starting the Region FX editing.
 
It was always counter-intuitive to have a duplicated, muted clip automatically created behind the edited one, I think that is indisputable although you apparently like the behavior.

Not so much that I "liked" the behavior, more like it took a long time for me to understand that the "one clip on top of another" was what was happening, and to learn to deal with that.  Is a second clip NOT created now?  I can see where that might make things simpler!  I guess these questions would apply to Melodyne (which I'm trying to learn) as well as V-Vocal.

Right - I've no idea if a backup clip is created, but if it is, it is completely transparent to the user. My process goes like this:

• Switch to a screenset where the dock is larger than normal
• Swipe the region of clip to examine
• Select Clip > RegionFX > V-Vocal
• Apply changes in the editor
• Close the editor
• Click on the [FX] icon in the top right corner of the clip, and select "Render FX"
• Repeat for other clips
• Switch to "normal" screenset.

If I want a backup of the original clips, then I clone the track to a "backup" folder before starting the operation, but typically I have never gone back to the original clip, so this is no longer a habit.