I actually put two layers of electrical tape on the top and bottom ejection port edges before each range trip and it eliminates the wear issue.
Then again, I'm the guy who puts electrical tape on the ejection hump of my AR's as well to prevent brass streaks, so it's likely that I'm just a nut.
I'm waiting for the one member who just got his H20 version to go shoot it a bit to see if he sells it once he sees the "damage" ???.