We first heard about these last march at the Japan Golf Fair. Finally they are out, I haven't had a chance to game one yet but plan to put the 661 into a xXx S-013 head this week. Both these shafts are designed for the more aggressive swinger. It's very similar to the motore speeder but it has some sort of nano tech that allowed them to design the shaft with more kick yet with less deformation. These are a hair lighter than their old predecessors and with a tad lower torque. Anyone game th