I'm almost mid 50's with a damaged right knee, 5'10" on a good day, with a 30-32 inseam.

This F6B is much easier to back up than my last bike, (1997 Yamaha Royalstar 1300). I stay aware of how I park and pay attention to inclines. As was already mentioned, the seat height and low center of gravity make this bike seem easier to back up. Now, parking nose down or on grass may be quite a different story.
I was VERY suprised how easy this bike moves being so much heavier than my last bike.