I just got rank 3 of this recipe, I've crafted at least 40 of them. Another guy I know crafted at least 25 and neither of us after 65 crafts had an extra proc. NEVER. I think the rank 3 proc is bugged, unless both of us got insanely unlucky. Before I submit an offical bug report I would like others with the rank 3 recipe to comment on their experience with this.
Has anyone seen a proc? How many have you crafted so far/before you saw a proc? Screenshots of getting a proc would be great.