I just replaced the Stern factory balls in my home Deadpool Pro with Chrome Ninjas, and I truly cannot believe the difference. I've only played 4 games since replacing the balls, and I have scored 3 of my top 5 games ever—including my all-time personal best by almost 100 million! I've played several thousand games on this machine, so this is not a coincidence.
I ordered 60 balls based on the reviews on Pinside, and I am really glad I took the leap. These pinballs are amazing.
The shipping was almost as fast as these balls play. I had my order within a couple days of placing it.
Thanks ballbaron and Pinside!