To sum up (for anybody interested):
1. The Bounce to Tracks issue was seemingly resolved with a SONAR update.
2. I have noticed that Datacolor Spyder checks the monitor calibration every hour by default and loads the video card LUT (Look Up Table) every minute by default. These were causing "glitches" in the audio which I resolved by changing the Datacolor Spyder preferences to "none" for each while using SONAR.
3. I left the Datacolor Spyder monitor calibration running with no ill effects.
4. Bouncing to Tracks, Mixing, then Exporting Audio was glitchless.
There ya have it. Cheers.