I guess I don't understand the design. I thought the concave prevented you from sitting the beer on the trub or is it the other way around?stompbox said:In my opinion...... Yes. I generally only make stouts or hopped up IPAs. Maybe there are some pro autosiphoners on here but i cannot avoid sucking up dryhops or trub/yeast o save my life. Why buy a new keg that makes your beer sit on sediment when you can buy a new one with a concave in the center to get it all out in the first pint or two for the same price? Just does not make sense, it also prevents you from sucking it dry.