I've ridden with Phil on his new twin, he keeps right up. It sounds different (two cylinders) and the fairing isn't as large as the barn door on the C-10, but it's a cool bike none the less. Riding two up fully loaded into a headwind might be a problem, especially on the interstates. Unsure of alternator output, but Phil has electrics, add-on lights, GPS, and I think an espresso machine.
Saddle bags do have a pass-through section from one side to the other. I think it'd be large enough for a cane, or 3-4 piece travel fishing rod, but not a set of crutches or a fly rod.
In many ways, it's a scaled down Concours.
Would *I* buy one? Maybe.
Rick