Shot the stx last night. My opinion is this bow is going to be an awesome bow! It had some hand vibe to it, but this bow holds like a rock. Very well balanced. The cam's are very smooth all the way back. I shot it with the cable stops and it had an okay wall, not as hard as a spiral but not spongy either. If you want a hard wall you can shoot the limb stops. What impressed me was the pin lined up with the string, showing how stiff this riser actually is with the 7000 series aluminum.