The difference is in the "bowl" around the lugs. Here is some detail pics the show the difference. From the pics, SW's wheels look to be "face polished", but it's hard to tell.
__________________ '01SS - RHS 460
Fikse / MWC / Kinsler / Mast
Enough torque to buckle pavement!
"Went right past silly and all the way to stupid..." - Shawn Miller