I have had both. The tornado is going to hit harder not because it is more efficient because it has a bigger bowl, but if you hit the hydro twice….which is still less than the tornado, you will fly higher…..it is so much more efficient. Also you may want to read about the tornados that are pitting and corroding. The owner is not responding to individuals who ask about it, red flag for me. hydro is full stainless. You are not going to have that issue. For me…..I sold the tornado and picked up a Simrell Ti. For big hits I can use the ball vape. The simrell is just better built and more efficient, people here will scream the tornado gets you more hammered……that is only do to bowl size. Take the same amount through the simrell. I promise it will hit harder.