Wow. That's a loaded question. I'm hoping Ken answers that.
In my mind, everyone has "a perfect tone" in their head, and if you tell a pro like Ken what you are after, he can match up the woods to give it to you.
As far as the "Smith tone" part, it would be hard to find a combination that Ken would put together that didn't have that distinctive tone. Also, there is so much versatility available in just the knob settings, that you can get as neutral or in your face as you wish. And that's before even touching the internal dip switches to tailor the preamp ranges.
Today, I made my first run at urban gospel. Of course I used my Smith, because even a novice like me can make their pops sound good on a Smith. Don't know how it was in the house, but it sounded real nice to me.