From what I gather they run pretty well and have an upgraded steel feed tray that doesn’t grind away like the aluminum one. It’s the same company by the way, same owner from what I understand, but they did an overhaul of the design and way they make em. Heard nothing but good things from people who have the current ones on RR lowers. Still not the greatest customer service or email response.... only way to get things it seams is to go through Reuben...