Here's a very well-reasoned opinion by Danny Boggs, a Reagan appointee (!) who's sitting on the Ninth Circuit by designation from the Sixth. It's about an arms dealer who's sentenced to 30 years in prison, so the underlying case is a big deal. Though the opinion is basically about venue -- not exactly the most exciting criminal law topic of all time.
Still, it's definitely worthy of a read. I wish I could write so well after 35+ years on the bench.
Or even one.