I have both and the HR Terror has a smoother reaction overall compared to the Nexxxus F(p+s). My Terror is drilled pin up and has good length with a strong reaction to friction. The Triple X has a strongest backend reaction for the Brunswick line. My Triple X is drilled similarly to the Terror with a pin up, and it is a lot stronger off the spot. They can both handle heavier oil patterns. If you need something stronger downlane, then a Triple X would be a good choice.