Your extractor looks to be perfect.
By "limp wristing", I mean that the shooter "gives" a little which doesn't allow the action to fully use the force of the recoil. I have a 1927 Argentine .45ACP - a clone of the 1911A1 - and the only time it has EVER jammed on me was once when I shot weak hand and limp wristed it. Lesson learned.
Below is a picture of a Luger receiver with the ejector circled. The ejector rides in a slot on the right side of the breech block and actually makes contact with the breech block due to the tension of the spring. You can actually see the ejector flex as the breech block goes forward into battery. Your ejector should look like the one in the picture below.
Many 9mm Lugers will leave a very distinctive mark on the mouth of a fired case that looks like a small triangle. No other gun will leave a mark like it.
