I just checked, and though I've never noticed it until you mentioned it, my '08's front fender is a bit off, though not to the degree that you indicate yours was at. Mine is more like a 60/40 split in the spacing on each side (where 50/50 would be perfectly even spacing).
( Used to have: )
'08 Vulcan 900 Custom:
*Passion Red *Mustang One-Piece Vintage Seat
*Hard-Krome 2.5" Strippers with Smartpartz Hard Kore Baffles
*Cobra Short Sissybar, Pad & Insert *Leatherworks 312 Chopper Bag *Small/Med. Windshield