I figured the H20 would be much harder to match and wondered how it would turn out.......well , he has this on lock and I am super impressed at the quality and finish. If you need a tube get a hold of him.
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" ???.