I think the fact that only a small minority of meat is slaughtered without pre stunning makes its own case.

No it doesn't. The fact that things are done that way does not make any case at all. In scientific studies the norm should always be questioned. Without this simple act we would never make any progress. All I am saying is that all types of slaughter can and do cause animals distress. I am just not convinced that shooting a bolt into and animals brain or electrocuting it prior to slitting its throat is any better than just slitting its throat. As I said, as far as I am concerned, the jury is still out.

DtG