Thanks for the anxious looks, but you don't need to worry about me, this topic is about this specific lens.
Regarding the comment about my future happiness: I also have the Sigma 35 1.4, Canon 16-35 II, 70-200 2.8 IS II, 100 L IS Macro, TS 90 2.8, TS 24 3.5 II, and the 50 1.4, and I have never had a complaint. This is the first time.
I still await your impressions about this copy of this lens.
Thanks.