He isn't a physicist. Saying he's physicist is like saying I'm a psychologist because I counsel people in my ministry.
http://www.setterfield.org/000docs/bio.html
I'm not disagreeing with him because he's shaking things up. I'm okay with shaking up the scientific community. They aren't all knowing and they are, imho, operating with a bad model. There are some things we can't know.
Though not to the levels and not because of the research he did. Seriously go and look up the recent report
Certain Investigations Regarding Variable Physical Constants by Amritbir Singh, R. K. Mishra, and Sukhjit Singh. They handle Setterfield's concepts and show why it isn't a useable model.
I have done my own research and don't find Setterfield helpful. If the creationist camp is going to propose a better model they need better research and better researchers. Guys like Setterfield aren't helpful in this regard. His model is wrong. The recent discussions going on aren't using his theories but are not conclusive. I don't buy that the speed of light is variable. Lots of people don't buy it.
No one has "verified" your conclusion either. It is still being considered and weighed. Like I said I'm all for shaking things up, but let's get people who have the credibility and usable research to do it. Not statisticians who aren't fully informed on the subject.