I can't speak highly enough about having a set of rear pegs for the driver. I'm using a set of Newspeedmaster brackets that I got used (off ebay I think) with the passenger pegs. FastEddySports has a solution that clamps to the rear frame down tubes. You can see the former in this shot:

Either way, it was a revelation in comfort for the highway, being able to both stretch out my stubby legs on the factory floorboards and "squat" on the rear pegs, stretching an entirely different set of muscles. Also, I can stand up on them both for another kind of stretch and for riding over dirt or other uneven surfaces at low speeds. And of course wind isn't a problem with my feet on the rear pegs.