Since mine is new I can't even hazard a guess. Let's hope the QC guys cycled it a few thousand times to test the design.
By the way, from my observation, the much trumpeted "soft" recoil isn't all that soft.
When I mentioned it to one of the Benelli reps, he said it will get softer over time.
We'll see.
I am sure of one thing though. If I shot this gun 4-5000 times during a 3-4 day dove hunt, as some of the reviewers did (and raved about the soft recoil) I'd have a very, very sore shoulder and face.
I don't see any easy way to add weight, which would help, so will just deal with it.
Allan