Agree! My 469 has that same notch and you can feel it, but I would not say it hinders my shooting… then again, I have had years to get used to it.

The magazine disconnect safety in that pistol has probably been yanked. Given the price you paid and the condition (which is to say… it’s shooter grade, not so much “collectible”), were it me, I would surely leave it as is. I find very little benefit to the magazine disconnect safety.

I would highly suggest a set of Uncle Mikes rubber grips for it — barely makes the pistol any thicker, far more tacky grab and the OEM grips… while not bad looking when new, well they REALLY show wear and are not resistant to wear.