I'm not sure if the Super Toughness would have helped me at Nationals...or anywhere else. I sucked.

I was working with a weird gear ratio (45x13) that required a short chain because both the chainring and cog were small. But, the other ratios I used in training (up to 51x14) used the long chain. The screw pin in the Super Toughness chain made it a pain in the butt to change on the regular. I went to using two ECO chains with fast clip master links and didn't look back.