If you have any questions about how gfxCardStatus works, or are having issues with gfxCardStatus, please don't hesitate to email me, or ping me on Twitter:
cody@codykrieger.com
@codykrieger
For questions about power source-based switching, see the relevant section on the switching page.
Keep in mind that I work on gfxCardStatus in my extremely limited spare time, so I'm not always able to answer email right away.