What's this? Tandems, especially on a flat course, are supposed to be
fast. All that aerodynamic efficiency and whatnot. Be the ride ever so large, you start out early and at the front and the only half-bikes you'll need contend with are the string of wheel-suckers that collect behind you, before they get ignominiously dropped. If any do manage to keep up, the riders are probably at least Cat 3's, and so no worries about them being squirrely. You blow by the rest stops while they are still setting up, and when you make it back to the Start/End no one rings cow bells and shouts out
Woo hoo! Great job! because they can't believe anyone has already finished.