Theoretically means jack sh!t in the real world. In theory, under the right circumstances, with the right programming, under the perfect atmospheric pressure, with the right temperature, and the proper amount of gravity, it's been said that just about every marker out there can do about 10 million CPS, but with the restrictions of circuit board programming, anti chop eyes, firing and recocking time, hopper feed rates, and even human reaction time, what they could "theoretically" do, under all the right circumstances means nothing, because you will never be able to operate your marker under all of the conditions that need to be met in order for theoretical CPS capabilities to be possible. Think of it like this, there is "theoretically" enough energy in a glass of water to power every car in the world for the next billion years. If friction didn't exist, if markers weren't powered by air, if you could have an unlimited feed rate, if, if, if, if