I hope my wife and I continue to improve on the tandem. We are in our third year of tandeming, and we have been improving. I'm disappointed every time we take a ride and she chooses her single. But I leave it up to her. On Sunday, we did a big group ride, the Tour De Kingston, in Kingston, NY. We did a hilly 25 mile route. It was darned hard for her, and she was pretty wiped out at the end, and I wonder how we would have done on our tandem. But I also respect her because she wanted the challenge. Perhaps she feels the single bike builds her strength better. That could be. I'll ask her. Captaining the tandem is very challenging for me, and my stamina runs out sooner than on a single.