I've tried the Candy Proto/F7-M and Altus. Thinking about the TP-7X and or TP-7 but cost is keeping me away. Altus is an unbelievable shaft. The transfer of energy is unlike any other shaft I have tried. You really see the benefit when you make a smooth swing, slow back and then increase acceleration on the way down. Jerking it in the transition is right death. Otherwise hang on and watch the ball launch like a missle. Even though it is a high launch low spin shaft, I have my driver set to low w/ 12, 1, 1, 12 setup. Its windy around here in FL so I don't want to balloon. I also love the feel at impact of having the weights up front. I tried with the weights in the back and I don't like the feel and sound.