Hey, really cool. Got it working. All I had to do was keep fiddling with the dozen or so "alsaconf" attributes until my test call to Skype fed back by "testing 1, 2, 3" announcement. I don't really know what did the trick because I finally just turned up the volume on every control (they install as mostly off, so you have to go figure out what needs turning on).
If there are alsa developers out there listening, here are a little suggestion. (Hopefully filtering out my tinges of frustration.
When the configuration program is running, test for an active mic. For example, ask the user to say something and detect which mic input has more than static noise input. If there is input, then turn it on. Please. Thank you.