and the only thing left is for me to push the bike back,
I was using the Givi Aftermarket luggage rack to lift
[SIZE=24pt]Incorrect technique!!!!!!![/SIZE]
You don't push the bike back, or get it rolling, lift it (it's 650 pounds, for cryin' out loud!) or anything like that.
You do know there's a handle on the side, under the rail beside the seat, right? THAT's the hand position for the centerstand.
Left hand on the handlebar, right hand in the handle under the seat.
Right foot on the centerstand tang, push the centerstand to the ground (no force yet,) rock the bike up so both centerstand feet touch the ground, then stand on the tang. Don't lift at the handle, just hold on there. Use your leg (strongest muscle in the body!) to press down on the tang. You'll put more than your own weight on the tang, and the bike rolls right up. Your back is not involved hardly any more than it is just walking around. It's easy to stand on the tang hard enough to slide the bike backwards several inches on the centerstand when it comes up.