The dual safety on the Compact and Fullsize guns is too easy to operate.
When I first got one I found the safety would engage when firing, so for a while I shot with my thumb holding it down.

When I had it apart I took a punch and put a burr in the safety where it brushes past the detent. Now it takes some effort to engage/disengage the safety.
If you send it to Smith that's probably what they will do, I am not aware of other methods that will stiffen the safety.

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U. S. Army Veteran