Brian,
I agree that some of the re-balancing of the styles did cause them to lose a little of the punchy live sound.
I have edited several of them and changed the volume settings which helped make them sound more live.
I play about 25% country with my Duo. I think the Country Styles are pretty good, however like yourself some NEW one's would have been nice. Experiment a little with them, try different styles with different songs. It all comes out good.
As far as the Guitar voices, I think they are exceptional on the Audya. My partner play's Rhythm Guitar with me and always says he can't compete with the Audya's guitars.
We all have our favorite sounds to use for the solo instrument and get used to a certain favorite.
Keep in mind, your listening audience will hear solo voicing differently than you. What you may think is so-so, they may think is AWESOME.
Most of the compliments I receive are from the Guitars, Sax's and Brass instruments.
Don't give up, The Audya is unsurpassed in the authenticity of solo voice department.
Keep playing and sharing your talent with others.
That's what its all about!
Jim