I have noticed the same thing Forlin, I have yet to see any evidence of a proc. I have the dps caster necklace and am exalted with scryers, but I have yet to see any extra shots, any extra damage appear in my floating combat text, or any procs listed in my combat log.
So I am inclined to believe that they broke the proc when they hotfixed them this week, I just haven't been able to prove it yet.