What's more, the Bias rulings (excluding the GSR evidence from the defendant's handloads) are consistent with my knowledge of the rules of evidence
Bias's handloads were allowed in court as evidence.
http://www.thehighroad.org/showthread.php?t=634817&highlight=why+jhp%3
You should read this thread, has some info you don't seem to be aware of.
So why do we have people arguing that if a shoot is justified, then the modifications to the gun won't be an issue.
Well, because so far we don't know of a single "good shoot" that a person was involved in that a modified gun has been an issue.
You can piont to cases involving the police all you want (mostly lawyers seeking big paydays by suing the dept.)
I personally don't do trigger jobs on my carry guns, thats only because I worry more about functional problems more than legal one's.