Interesting, I have never been great at busting clays, but when I pulled this one out, I was better at it than I was with my 870. My teen boys were doing it ok too.
I read somewhere that for break-in you want a few hundred rounds of high-brass, high-velocity (1300 fps or better). I couldn't find any, and I wasn't patient enough to order online. I tried some cheap stuff and I sampled some federal buckshot, and I had a few failures tto feed. But I found several boxes of AA 1300 fps at Sportsman's and shot them, no malfunctions. (BTW, it isn't high-brass either.)