I don't know, Randy. I have won a lot of money and numerous no limit tournaments in Laughlin, Nevada, without eliminating the "call". In fact, I enjoy slowplaying aggressive raisers. Really aggressive players seldom last at the final tables here. It doesn't take long to peg a player like that, and either slowplay good hands on him or pop him with constant reraises. The ladder usually squelches constant raisers pretty quickly. I have read about the "raise or fold" theory you espouse time and time again, but honestly have never seen folks have ongoing success using it.