A screamer rips if the force on it is greater than the activation force. How much energy is dissipated by the screamer is constant, the force is irrelevant so long as it's greater than the activation force. Once the screamer is fully ripped, then we start getting interested in the true force. But that's not what we're talking about.
My previous example simply illustrated that a screamer has a non-negligible effect on reducing the force on pro, Mmmmkay?