This video goes into more detail about how to get a top performance setup.
Also, I mention how the aluminum pusher doesn’t get as good of air seal as brass. That’s actually not true anymore because we’ve improved it since we shot this video.
Aluminum pushers with the o-ring notch now perform just as well as the brass pusher. I’d also personally recommend an aluminum pusher over brass because of the dogbone ram.
Top performance is achieved by a brass barrel, half-length darts, aluminum ram, brass barrel, the right spring load, and machined parts.